feat(groups): implement product groups

[KilianTrunk]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 31.56997% with 401 lines in your changes missing coverage. Please review.
✅ Project coverage is 35.01%. Comparing base (14a596f) to head (18ff1f2).

Files with missing lines	Patch %	Lines
...ource/RelationManagers/ProductsRelationManager.php	0.00%	181 Missing ⚠️
src/Filament/Resources/ProductResource.php	48.23%	44 Missing ⚠️
src/Filament/Resources/GroupResource.php	65.54%	41 Missing ⚠️
.../Resources/ProductResource/Pages/CreateProduct.php	0.00%	37 Missing ⚠️
...nt/Resources/ProductResource/Pages/EditProduct.php	0.00%	25 Missing ⚠️
src/Factories/GroupFactory.php	0.00%	21 Missing ⚠️
src/Livewire/TenantSwitcher.php	0.00%	19 Missing ⚠️
src/Models/Group.php	79.03%	13 Missing ⚠️
src/Policies/GroupPolicy.php	50.00%	10 Missing ⚠️
...ment/Resources/GroupResource/Pages/CreateGroup.php	0.00%	5 Missing ⚠️
... and 2 more

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #20      +/-   ##
============================================
- Coverage     35.34%   35.01%   -0.33%     
- Complexity      776      862      +86     
============================================
  Files            68       76       +8     
  Lines          4001     4567     +566     
============================================
+ Hits           1414     1599     +185     
- Misses         2587     2968     +381     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.