Update settings.d10.php to 10.3.9 and add state cache flag

Update the settings.php file that comes with 10.3.9 and add the missing state cache flag to remove warning in Drupal status report.

Leave all active setting configurations as-is.

charts/drupal/conf/settings.d10.php

@@ -24,18 +24,18 @@
  * 'sites/default' will be used.
  *
  * For example, for a fictitious site installed at
- * https://www.drupal.org:8080/mysite/test/, the 'settings.php' file is searched
+ * https://www.drupal.org:8080/my-site/test/, the 'settings.php' file is searched
  * for in the following directories:
  *
- * - sites/8080.www.drupal.org.mysite.test
- * - sites/www.drupal.org.mysite.test
- * - sites/drupal.org.mysite.test
- * - sites/org.mysite.test
+ * - sites/8080.www.drupal.org.my-site.test
+ * - sites/www.drupal.org.my-site.test
+ * - sites/drupal.org.my-site.test
+ * - sites/org.my-site.test
  *
- * - sites/8080.www.drupal.org.mysite
- * - sites/www.drupal.org.mysite
- * - sites/drupal.org.mysite
- * - sites/org.mysite
+ * - sites/8080.www.drupal.org.my-site
+ * - sites/www.drupal.org.my-site
+ * - sites/drupal.org.my-site
+ * - sites/org.my-site
  *
  * - sites/8080.www.drupal.org
  * - sites/www.drupal.org
@@ -46,8 +46,8 @@
  *
  * Note that if you are installing on a non-standard port number, prefix the
  * hostname with that number. For example,
- * https://www.drupal.org:8080/mysite/test/ could be loaded from
- * sites/8080.www.drupal.org.mysite.test/.
+ * https://www.drupal.org:8080/my-site/test/ could be loaded from
+ * sites/8080.www.drupal.org.my-site.test/.
  *
  * @see example.sites.php
  * @see \Drupal\Core\DrupalKernel::getSitePath()
@@ -77,9 +77,9 @@
  *
  * @code
  * $databases['default']['default'] = [
- *   'database' => 'databasename',
- *   'username' => 'sqlusername',
- *   'password' => 'sqlpassword',
+ *   'database' => 'database_name',
+ *   'username' => 'sql_username',
+ *   'password' => 'sql_password',
  *   'host' => 'localhost',
  *   'port' => '3306',
  *   'driver' => 'mysql',
@@ -249,8 +249,8 @@
  *
  * WARNING: The above defaults are designed for database portability. Changing
  * them may cause unexpected behavior, including potential data loss. See
- * https://www.drupal.org/developing/api/database/configuration for more
- * information on these defaults and the potential issues.
+ * https://www.drupal.org/docs/8/api/database-api/database-configuration for
+ * more information on these defaults and the potential issues.
  *
  * More details can be found in the constructor methods for each driver:
  * - \Drupal\mysql\Driver\Database\mysql\Connection::__construct()
@@ -261,9 +261,9 @@
  * @code
  *   $databases['default']['default'] = [
  *     'driver' => 'pgsql',
- *     'database' => 'databasename',
- *     'username' => 'sqlusername',
- *     'password' => 'sqlpassword',
+ *     'database' => 'database_name',
+ *     'username' => 'sql_username',
+ *     'password' => 'sql_password',
  *     'host' => 'localhost',
  *     'prefix' => '',
  *   ];
@@ -273,7 +273,7 @@
  * @code
  *   $databases['default']['default'] = [
  *     'driver' => 'sqlite',
- *     'database' => '/path/to/databasefilename',
+ *     'database' => '/path/to/database_filename',
  *   ];
  * @endcode
  *
@@ -283,13 +283,34 @@
  *     'driver' => 'my_driver',
  *     'namespace' => 'Drupal\my_module\Driver\Database\my_driver',
  *     'autoload' => 'modules/my_module/src/Driver/Database/my_driver/',
- *     'database' => 'databasename',
- *     'username' => 'sqlusername',
- *     'password' => 'sqlpassword',
+ *     'database' => 'database_name',
+ *     'username' => 'sql_username',
+ *     'password' => 'sql_password',
  *     'host' => 'localhost',
  *     'prefix' => '',
  *   ];
  * @endcode
+ *
+ * Sample Database configuration format for a driver that is extending another
+ * database driver.
+ * @code
+ *   $databases['default']['default'] = [
+ *     'driver' => 'my_driver',
+ *     'namespace' => 'Drupal\my_module\Driver\Database\my_driver',
+ *     'autoload' => 'modules/my_module/src/Driver/Database/my_driver/',
+ *     'database' => 'database_name',
+ *     'username' => 'sql_username',
+ *     'password' => 'sql_password',
+ *     'host' => 'localhost',
+ *     'prefix' => '',
+ *     'dependencies' => [
+ *       'parent_module' => [
+ *         'namespace' => 'Drupal\parent_module',
+ *         'autoload' => 'core/modules/parent_module/src/',
+ *       ],
+ *     ],
+ *   ];
+ * @endcode
  */
 
 /**
@@ -402,14 +423,13 @@
  * security, or encryption benefits. In an environment where Drupal
  * is behind a reverse proxy, the real IP address of the client should
  * be determined such that the correct client IP address is available
- * to Drupal's logging, statistics, and access management systems. In
- * the most simple scenario, the proxy server will add an
- * X-Forwarded-For header to the request that contains the client IP
- * address. However, HTTP headers are vulnerable to spoofing, where a
- * malicious client could bypass restrictions by setting the
- * X-Forwarded-For header directly. Therefore, Drupal's proxy
- * configuration requires the IP addresses of all remote proxies to be
- * specified in $settings['reverse_proxy_addresses'] to work correctly.
+ * to Drupal's logging and access management systems. In the most simple
+ * scenario, the proxy server will add an X-Forwarded-For header to the request
+ * that contains the client IP address. However, HTTP headers are vulnerable to
+ * spoofing, where a malicious client could bypass restrictions by setting the
+ * X-Forwarded-For header directly. Therefore, Drupal's proxy configuration
+ * requires the IP addresses of all remote proxies to be specified in
+ * $settings['reverse_proxy_addresses'] to work correctly.
  *
  * Enable this setting to get Drupal to determine the client IP from the
  * X-Forwarded-For header. If you are unsure about this setting, do not have a
@@ -635,7 +655,7 @@
  * the output of phpinfo(). The full output can contain sensitive information
  * so by default Drupal removes some sections.
  *
- * This behaviour can be configured by setting this variable to a different
+ * This behavior can be configured by setting this variable to a different
  * value corresponding to the flags parameter of phpinfo().
  *
  * If you need to expose more information in the report - for example to debug a
@@ -660,19 +680,6 @@
  */
 $settings['file_private_path'] =  '/private';
 
-/**
- * Temporary file path:
- *
- * A local file system path where temporary files will be stored. This directory
- * must be absolute, outside of the Drupal installation directory and not
- * accessible over the web.
- *
- * If this is not set, the default for the operating system will be used.
- *
- * @see \Drupal\Component\FileSystem\FileSystem::getOsTemporaryDirectory()
- */
-# $settings['file_temp_path'] = '/tmp';
-
 /**
  * Session write interval:
  *
@@ -855,6 +862,16 @@
  */
 $settings['entity_update_backup'] = TRUE;
 
+/**
+ * State caching.
+ *
+ * State caching uses the cache collector pattern to cache all requested keys
+ * from the state API in a single cache entry, which can greatly reduce the
+ * amount of database queries. However, some sites may use state with a
+ * lot of dynamic keys which could result in a very large cache.
+ */
+$settings['state_cache'] = TRUE;
+
 /**
  * Node migration type.
  *