chore: improve npm package discoverability and clean up unused dependencies (#1078)

* Improve npm package metadata, keywords, and clean up unused dependencies

- Expand keywords from 14 to 36 for better npm discoverability (cybersecurity, grc, soc2, gdpr, hipaa, pci-dss, eu-cra, stride, wcag, etc.)
- Improve description to mention all supported compliance frameworks
- Update homepage to live application URL (ciacompliancemanager.com)
- Add funding metadata for GitHub sponsors
- Remove unused devDependencies: @types/fs-extra, @types/testing-library__jest-dom, @vitest/coverage-istanbul, autoprefixer
- Update knip.json to remove references to removed packages

Agent-Logs-Url: https://github.com/Hack23/cia-compliance-manager/sessions/8eba3032-2394-400e-8af6-a40806b979a9

Co-authored-by: pethers <1726836+pethers@users.noreply.github.com>

* chore: regenerate package-lock.json after devDependency removals

Agent-Logs-Url: https://github.com/Hack23/cia-compliance-manager/sessions/8ff25aed-500e-4fd9-9eac-25567855400a

Co-authored-by: pethers <1726836+pethers@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: pethers <1726836+pethers@users.noreply.github.com>

Author: Copilot

knip.json

@@ -14,10 +14,6 @@
   ],
   "ignoreDependencies": [
     "@tailwindcss/postcss",
-    "@types/fs-extra",
-    "@types/testing-library__jest-dom",
-    "@vitest/coverage-istanbul",
-    "autoprefixer",
     "cypress-junit-reporter",
     "cypress-react-selector",
     "cypress-wait-until",