Fix changelogs

Merge pull request codeigniter4#2283 from MGatner/toolbar-hotfix

Rename collectors _*.tpl.php to _*.tpl

Merge branch 'master' into develop

Final changelog

Tweak changelog

Release 4.0.0-beta.4

Fix changelog

Release 4.0.0-beta.1

Release 4.0.0-alpha.5

Merge branch 'release-4.0.0-alpha.4'