Fix: Resolve type errors and cleanup window.location.reload calls

src/lib/elements/element_codemirror_editor.svelte

@@ -64,12 +64,17 @@
         ].filter(Boolean);
 
         // Create editor
+        if (!editor_container) {
+            console.error('Editor container not found.');
+            return;
+        }
+
         editor_view = new cm.EditorView({
             state: cm.EditorState.create({
                 doc: content ?? '',
                 extensions
             }),
-            parent: editor_container
+            parent: editor_container as HTMLElement
         });
     }