Fix HTML entities showing in support form

[simonhamp]

Summary

The customer support request form was rendering literal HTML entities in the UI:

• Product card descriptions on step 1 showed & (e.g. "iOS & Android apps") because passing an interpolated value to a Flux component attribute (description="{{ $product['desc'] }}") ends up double-encoding — {{ }} runs e() once, then the component template echoes it through {{ }} again.
• The "Steps to reproduce" textarea placeholder used 
 HTML entity references, which under some render paths come through as literal text rather than newlines.
• The reply hint on the ticket show page used ⌘ for the Mac Command symbol with the same risk.

Changes

• resources/views/livewire/customer/support/create.blade.php
  • Replaced & with and in the product card descriptions to dodge the Flux double-escape entirely.
  • Switched placeholder="… 
 …" to a :placeholder="implode(PHP_EOL, [...])" binding so newlines render reliably.
• resources/views/livewire/customer/support/show.blade.php
  • Replaced ⌘ with the literal ⌘ character in the reply hint.
• tests/Feature/SupportFormPlaceholderTest.php
  • Added a regression test asserting the placeholder no longer contains 
 and renders real newlines.

Test plan

• php artisan test --compact tests/Feature/SupportTicketTest.php tests/Feature/SupportFormPlaceholderTest.php — all 83 tests pass
• Verified visually in the browser: product card descriptions and placeholder lines render correctly with no entities

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