MDL-74529 theme_boost: accessible autolink styles from filters.

The `autolink` class is used by various filter types to create
hyperlinks within text. Extend existing `aalink` class so they
behave in the same way.

theme/boost/scss/moodle/core.scss

@@ -255,8 +255,11 @@ button.close,
     text-align: right;
 }
 
-a.autolink.glossary:hover {
-    cursor: help;
+a.autolink {
+    @extend .aalink;
+    &.glossary:hover {
+        cursor: help;
+    }
 }
 /* Block which is hidden if javascript enabled, prevents fickering visible when JS from footer used! */
 .collapsibleregioncaption {

theme/boost/style/moodle.css

@@ -9935,7 +9935,7 @@ a.dimmed_text:visited,
 .dimmed_category a {
   color: #6a737b; }
 
-.aalink.focus, .aalink:focus,
+.aalink.focus, a.focus.autolink, .aalink:focus, a.autolink:focus,
 #page-footer a:not([class]).focus,
 #page-footer a:not([class]):focus,
 .arrow_link.focus,
@@ -9949,7 +9949,7 @@ a:not([class]):focus,
   background-color: #d2e8fb;
   box-shadow: 0 -0.2rem #d2e8fb, 0 0.2rem #343a40; }
 
-.aalink:focus:hover,
+.aalink:focus:hover, a.autolink:focus:hover,
 #page-footer a:not([class]):focus:hover,
 .arrow_link:focus:hover,
 a:not([class]):focus:hover,

theme/classic/style/moodle.css

@@ -9935,7 +9935,7 @@ a.dimmed_text:visited,
 .dimmed_category a {
   color: #6a737b; }
 
-.aalink.focus, .aalink:focus,
+.aalink.focus, a.focus.autolink, .aalink:focus, a.autolink:focus,
 #page-footer a:not([class]).focus,
 #page-footer a:not([class]):focus,
 .arrow_link.focus,
@@ -9949,7 +9949,7 @@ a:not([class]):focus,
   background-color: #d2e8fb;
   box-shadow: 0 -0.2rem #d2e8fb, 0 0.2rem #343a40; }
 
-.aalink:focus:hover,
+.aalink:focus:hover, a.autolink:focus:hover,
 #page-footer a:not([class]):focus:hover,
 .arrow_link:focus:hover,
 a:not([class]):focus:hover,