chore: remove old website (#3990)

This pull request removes a large number of configuration, manifest, and static files from the `apps/website` project, as well as all source code for core UI components. The main impact is the complete deletion of the website app's build, deployment, and code infrastructure, which will prevent it from building, linting, formatting, or running as previously configured.

**Project configuration and infrastructure removal:**

* Deleted the main project configuration files: `package.json`, `project.json`, `.eslintrc.json`, `.prettierignore`, `.gitignore`, and removed Netlify-specific files and configs. This disables build, lint, format, and deployment for the website app. [[1]](diffhunk://#diff-c8250ff88394f3d8d36cfcd52d176e5fb4ff291f74cefcb0fa6a6386f080cc11L1-L4) [[2]](diffhunk://#diff-ef32855402f10aefbde23289a2f088b2aa60bce6185f18e637f5b168ee12c8adL1-L107) [[3]](diffhunk://#diff-c16668e1614965a1291b2e41375b4eb995aeb5cf3df4300dc3917065f0cec342L1-L37) [[4]](diffhunk://#diff-c7f46fc930ab58a13af555e28d89c71d7efafb4e55745d12c5253634af1bd3d8L1-L6) [[5]](diffhunk://#diff-ae37b55d742187e17104ad1b4970fa35dbfb5fec6b6554c2ad7bd9ce4f5d41f1L1-L2) [[6]](diffhunk://#diff-d450146a6826d40db62aa327ac97abb6639b3fc6621473194a39ec76ac90d6e6L1-L11)
* Removed the Netlify adapter Vite config file (`adapters/netlify-edge/vite.config.ts`), disabling Netlify Edge deployment for the app.

**Static and public asset removal:**

* Deleted all static/public files, including `manifest.json`, `sitemap.xml`, `_headers`, and `forms.html`, which removes web manifest, sitemap, custom headers, and Netlify form support. [[1]](diffhunk://#diff-cd09b0bb66a5afc8951f6c3d1d8af8e09250c7d5300a5c2819197cf5eceed802L1-L9) [[2]](diffhunk://#diff-d699e50db0edaea26c25f5b02706d33a1c6ef42c3b509a5248aebc47e26e1482L1-L11) [[3]](diffhunk://#diff-15727b07d21c35c28f18e285dc9895d838d7fbc4a53a4e416f56b047334b69bbL1-L2) [[4]](diffhunk://#diff-5b1f70717fdce304829762f5fd05550725fc9196b8a0247b93d9a276747d5cf4L1-L23)

**Source code removal:**

* Removed all core UI component source files: `button.tsx`, `card.tsx`, and `container.tsx`, which eliminates reusable components from the website app. [[1]](diffhunk://#diff-79ee97d28a84d041efd78069a1eafdfaac47822d3079c81cca3c9f60f69622d8L1-L168) [[2]](diffhunk://#diff-eab1993ca623aa2d702ef6cd345c2aaf1c6e7b2ae5576d9dfb65711ffb2002f4L1-L19) [[3]](diffhunk://#diff-5ba17d55ecd037fd51a6fead1056ff5860bc66440d52c043597f4c01b2c2aa60L1-L67)

**Documentation and build tooling removal:**

* Deleted the main README for the app and the PostCSS config file, removing documentation and CSS build configuration. [[1]](diffhunk://#diff-6b84632b35c980038d557e292fe90218617ef6c03aac9a93c2c3b8848e80122dL1-L7) [[2]](diffhunk://#diff-71a9ce921272b999b00f7d32e9971e0134a37560315da722664ad582f745741dL1-L10)

Author: ScriptedAlchemy