Continued refresh

[Spuds]

use static on closures that don't need $this arrow functions fn() => for some one line closures replace those \ElkArte\AdminController\XYZ calls with an import and XYZ::class some hardening useless else removal early returns remove list() cast ints in some of the queries positive logic in some if

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 40.43687% with 1118 lines in your changes are missing coverage. Please review.

Project coverage is 34.08%. Comparing base (c1eba29) to head (346263d). Report is 1 commits behind head on development.

Files	Patch %	Lines
...s/ElkArte/AdminController/ManageCalendarModule.php	0.00%	83 Missing :warning:
sources/ElkArte/AttachmentsDirectory.php	8.77%	52 Missing :warning:
...es/ElkArte/MessagesCallback/BodyParser/Compact.php	0.00%	52 Missing :warning:
...lkArte/ScheduledTasks/Tasks/UserAccessMentions.php	0.00%	44 Missing :warning:
sources/ElkArte/Modules/Poll/Post.php	19.60%	41 Missing :warning:
sources/ElkArte/Packages/Packages.php	33.92%	37 Missing :warning:
sources/ElkArte/Modules/Drafts/PersonalMessage.php	0.00%	33 Missing :warning:
sources/ElkArte/MessagesDelete.php	0.00%	32 Missing :warning:
sources/ElkArte/Modules/Calendar/Post.php	0.00%	30 Missing :warning:
sources/ElkArte/MetadataIntegrate.php	0.00%	29 Missing :warning:
... and 108 more

Additional details and impacted files

```diff @@ Coverage Diff @@ ## development #3758 +/- ## ================================================= - Coverage 34.39% 34.08% -0.32% + Complexity 16571 16511 -60 ================================================= Files 436 430 -6 Lines 84007 84031 +24 ================================================= - Hits 28892 28639 -253 - Misses 55115 55392 +277 ```

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