feat: Enhance WebDAV file management and UI

- Add functionality to create new collections via API
- Implement copy and move operations between collections
- Improve image rendering in markdown preview with relative path resolution
- Add support for previewing binary files (images, PDFs)
- Refactor modal styling to use flat buttons and improve accessibility

config.yaml

@@ -1,25 +1,31 @@
-# WsgiDAV Configuration
-# Collections define WebDAV-accessible directories
-
 collections:
   documents:
-    path: "./collections/documents"
-    description: "General documents and notes"
-
+    path: ./collections/documents
+    description: General documents and notes
   notes:
-    path: "./collections/notes"
-    description: "Personal notes and drafts"
-
+    path: ./collections/notes
+    description: Personal notes and drafts
   projects:
-    path: "./collections/projects"
-    description: "Project documentation"
-
-# Server settings
+    path: ./collections/projects
+    description: Project documentation
+  new_collectionss:
+    path: collections/new_collectionss
+    description: 'User-created collection: new_collectionss'
+  test_collection_new:
+    path: collections/test_collection_new
+    description: 'User-created collection: test_collection_new'
+  dynamic_test:
+    path: collections/dynamic_test
+    description: 'User-created collection: dynamic_test'
+  runtime_collection:
+    path: collections/runtime_collection
+    description: 'User-created collection: runtime_collection'
+  7madah:
+    path: collections/7madah
+    description: 'User-created collection: 7madah'
 server:
-  host: "localhost"
+  host: localhost
   port: 8004
-
-# WebDAV settings
 webdav:
   verbose: 1
   enable_loggers: []