Release 3.2.4 filter UX and sponsorship updates

[arm092]

Summary

• reset select filter controls after applying or clearing filters
• use the Apricode orange accent for the filter panel and active-filter label
• restyle Reset filters, Export, and Show / Hide Columns as icon-led outline buttons with inverted hover colors
• add GitHub Sponsors discovery to the README and repository funding metadata
• keep security regression assertions compatible with Livewire 4.3 and 4.4
• document the changes for release 3.2.4

Verification

• composer test -- --do-not-cache-result – 81 tests, 317 assertions

pm run test:browser – 2 passed

• one-time Chromium computed-style QA – outline and inverted hover colors passed
• select reset lifecycle probe – apply, remove, and clear passed
• composer audit --locked – no advisories

pm audit --audit-level=high – no vulnerabilities

• composer validate --strict – valid