[backport core/1.32] Add linear mode (#6926)

Backport of #6670 to `core/1.32`

Automatically created by backport workflow.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6926-backport-core-1-32-Add-linear-mode-2b66d73d365081e89a25c097285dc494)
by [Unito](https://www.unito.io)

Co-authored-by: AustinMroz <austin@comfy.org>

src/workbench/eventHelpers.ts

@@ -1,3 +1,4 @@
+import { useCanvasStore } from '@/renderer/core/canvas/canvasStore'
 /**
  * Utility functions for handling workbench events
  */
@@ -25,6 +26,7 @@ export function shouldIgnoreCopyPaste(target: EventTarget | null): boolean {
         'reset',
         'search',
         'submit'
-      ].includes(target.type))
+      ].includes(target.type)) ||
+    useCanvasStore().linearMode
   )
 }