refactor: update ESLint configuration and improve Svelte component structure

- Added .eslintcache to .gitignore for better cache management.
- Enhanced ESLint configuration to ignore specific directories and files for cleaner linting.
- Updated Svelte components to use unique keys in loops for improved performance and maintainability.
- Cleaned up imports and standardized formatting across various components for better code clarity.
- Resolved merge conflicts in multiple Svelte files to ensure consistent functionality.

.vscode/settings.json

@@ -9,5 +9,21 @@
   // },
   // "[svelte]": {
   //   "editor.defaultFormatter": "biomejs.biome"
-  // }
-}
+  // },
+  "eslint.useFlatConfig": true,
+  "eslint.workingDirectories": [
+    { "pattern": "apps/*" },
+    { "pattern": "packages/*" }
+  ],
+  "eslint.validate": [
+    "javascript",
+    "javascriptreact",
+    "typescript",
+    "typescriptreact",
+    "svelte"
+  ],
+  "eslint.options": {
+    "cache": true,
+    "cacheLocation": ".eslintcache"
+  }
+}