refactor: remove biome configuration and update dependencies

- Deleted the obsolete biome.json file to streamline project configuration.
- Updated package.json and bun.lock to include new ESLint and Prettier dependencies for improved code quality and consistency.
- Added ESLint configuration package for better linting support across the project.
- Cleaned up various package dependencies to ensure a more maintainable and efficient codebase.

apps/web/package.json

@@ -12,6 +12,7 @@
     "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch"
   },
   "devDependencies": {
+    "@sgse-app/eslint-config": "*",
     "@sveltejs/adapter-auto": "^6.1.0",
     "@sveltejs/kit": "^2.31.1",
     "@sveltejs/vite-plugin-svelte": "^6.1.2",
@@ -27,6 +28,7 @@
     "vite": "^7.1.2"
   },
   "dependencies": {
+    "eslint": "catalog:",
     "@convex-dev/better-auth": "^0.9.7",
     "@dicebear/collection": "^9.2.4",
     "@dicebear/core": "^9.2.4",