feat: integrate @tailwindcss/typography and enhance folder picker functionality

- Added @tailwindcss/typography dependency to package.json and tailwind.config.js.
- Updated FolderPicker.vue to include additional properties (isGitRepo, hasDocuments) for directories.
- Enhanced Sidebar.vue with folder creation and document handling features, including drag-and-drop functionality.
- Implemented createFolder and moveDocument mutations in gql.ts for managing folder and document operations.
- Added logic to handle folder creation and document creation prompts in Sidebar.vue.
- Updated the layout and interactions in Sidebar.vue to improve user experience.

package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "@tailwindcss/typography": "^0.5.19"
+  }
+}