Merge branch 'main' into mobile/prepare-webviews-2

* main:
  Return to Board page when clearing filters
  Bump card perma z-index when dialog is open
  Only submit on blur if the input has a value
  Make the CLAUDE.md stub less obtrusive
  Only index up to 32KB of search content
  Use inline spacing variable
  Actually make it affect larger screens too
  Use CSS variable for panel size in delete dialogs
  Add viewport padding to dialogs on mobile
  Prevent page scrolling when modal dialog is open

app/javascript/controllers/form_controller.js

@@ -54,6 +54,10 @@ export default class extends Controller {
   }
 
   submitToTopTarget(event) {
+    const value = event.target.value?.trim()
+
+    if (!value) return false
+
     this.element.setAttribute("data-turbo-frame", "_top")
     this.submit()
   }