fix: fix months discrimination

[asbiin]

Months like Februar are discriminated.
Each end of the month, their Life Metrics won't display, they are not welcome ... because of their size. The Carbon::now()->month($month)->day(1) code would just skip Februar (and sometimes April, June, etc.), just because you're currently in a bigger month. This is pure discrimination.
This PR brings back justice in this world.
For all monthkind.

[asbiin]

FYI this was discovered due to a failing test:

1) Tests\Unit\Domains\Vault\ManageLifeMetrics\Web\ViewHelpers\VaultLifeMetricsViewHelperTest::it_gets_the_data_needed_for_the_data_transfer_object
Failed asserting that two arrays are equal.
--- Expected
+++ Actual
@@ @@
     0 => Array (...)
     1 => Array (
         'id' => 2
-        'friendly_name' => 'Feb'
+        'friendly_name' => 'Mar'
         'events' => 1
     )
     2 => Array (...)

/home/runner/work/chandler/chandler/tests/Unit/Domains/Vault/ManageLifeMetrics/Web/ViewHelpers/VaultLifeMetricsViewHelperTest.php:92
/home/runner/work/chandler/chandler/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php:174

[sonarcloud]

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