Adds a proper icons for pluginManager.

Changes the old naming convention of our tools to the new ones.

Adds proper icons size for tasks, mailTemplate and
taskDashboard.

Adds proper icons to tasks task-dashboard and mail.

Full code style as been reworked to match 1.4

Code style continue

Continuity of code style fixing

Return without space after declaration

Parenthesis open in fnc call - code style part1

Space parenthesis after fnc name fixed
On function creation

Fixing codestyle

This reverts commit 46b03343.

Fixing codestyle

Fix session ID is now renewed after proper login

issue #6187

issue #6167

This fixes a warning from PHPCompatiblity about a possible future
 conflict with PHP internal functions.

issue #6167

issue #6088

issue #6150

There is a wrong type in phpCas phpdoc in some versions (1.3.6 from
 debian is affected)

issue #6114

Removed phpstan.neon which will be in dev-tools instead.
Fixed some phpstan reported problems to avoid having a huge baseline.

issue #6114

Also made sure template and archive are at the end since they are
 special cases.

issue #6119

Moved styling from HTML code to CSS for ACL edition template.
We should also look into using colors from the theme instead of hard
 coded ones.

issue #6119

48px comes from breeze theme.
16px is a copy/paste of package-x-generic

issue #6119

issue #6114

issue #6114

issue #6071

issue #6071

Use a thrown error instead of calling msg_dialog and exit.
And use an exception handler to format uncaught fatal errors.

issue #6071

issue #6073

issue #6065

For the message explaining how to edit the fields on a click-to-edit screen.

issue #6038

issue #6069

issue #6069

Move styling to CSS theme
Move HTML to smarty template
Render everything in one pass
Cleaned up some variable and function names
Add some strict typing

Should render and behave the same as before

issue #6049

issue #5779

issue #6046

issue #6046

issue #6046