Fix Codemirror undo history

src-web/components/core/Editor/Editor.css

@@ -63,7 +63,7 @@
 
     .template-tag {
       /* Colors */
-      @apply bg-surface text-text-subtle border-border-subtle;
+      @apply bg-surface text-text-subtle border-border-subtle whitespace-nowrap;
       @apply hover:border-border-subtle hover:text-text hover:bg-surface-highlight;
 
       @apply inline border px-1 mx-[0.5px] rounded cursor-default dark:shadow;

src-web/components/core/Editor/Editor.tsx

@@ -174,7 +174,7 @@ export const Editor = forwardRef<EditorView | undefined, EditorProps>(function E
         id: 'template-function',
         size: 'sm',
         title: 'Configure Function',
-        description: fn.description || null,
+        description: fn.description,
         render: ({ hide }) => (
           <TemplateFunctionDialog
             templateFunction={fn}

src-web/components/core/Editor/extensions.ts

@@ -4,7 +4,7 @@ import {
   closeBracketsKeymap,
   completionKeymap,
 } from '@codemirror/autocomplete';
-import { defaultKeymap, history, historyKeymap, indentWithTab } from '@codemirror/commands';
+import { history, historyKeymap, indentWithTab } from '@codemirror/commands';
 import { javascript } from '@codemirror/lang-javascript';
 import { json } from '@codemirror/lang-json';
 import { xml } from '@codemirror/lang-xml';
@@ -134,7 +134,7 @@ export const baseExtensions = [
   }),
   syntaxHighlighting(syntaxHighlightStyle),
   syntaxTheme,
-  EditorState.allowMultipleSelections.of(true),
+  keymap.of([...historyKeymap, ...completionKeymap]),
 ];
 
 export const multiLineExtensions = [
@@ -156,14 +156,5 @@ export const multiLineExtensions = [
   rectangularSelection(),
   crosshairCursor(),
   highlightActiveLineGutter(),
-  keymap.of([
-    indentWithTab,
-    ...closeBracketsKeymap,
-    ...defaultKeymap,
-    ...searchKeymap,
-    ...historyKeymap,
-    ...foldKeymap,
-    ...completionKeymap,
-    ...lintKeymap,
-  ]),
+  keymap.of([indentWithTab, ...closeBracketsKeymap, ...searchKeymap, ...foldKeymap, ...lintKeymap]),
 ];