feat: Bind keyboard events to the current excalidraw container and add handleKeyboardGlobally prop to allow host to bind to document (#3430)

* fix: Bind keyboard events to excalidraw container

* fix cases around blurring

* fix modal rendering so keyboard shortcuts work on modal as well

* Revert "fix modal rendering so keyboard shortcuts work on modal as well"

This reverts commit 2c8ec6be8e.

* Attach keyboard event in react way so we need not handle portals separately (modals)

* dnt propagate esc event when modal shown

* focus the container when help dialog closed with shift+?

* focus the help icon when help dialog on close triggered

* move focusNearestTabbableParent to util

* rename util to focusNearestParent and remove outline from excal and modal

* Add prop bindKeyGlobally to decide if keyboard events should be binded to document and allow it in excal app, revert tests

* fix

* focus container after installing library, reset library and closing error dialog

* fix tests and create util to focus container

* Add excalidraw-container class to focus on the container

* pass focus container to library to focus current instance of excal

* update docs

* remove util as it wont be used anywhere

* fix propagation not being stopped for React keyboard handling

* tweak reamde

Co-authored-by: David Luzar <luzar.david@gmail.com>

* tweak changelog

* rename prop to handleKeyboardGlobally

Co-authored-by: dwelle <luzar.david@gmail.com>

src/element/textWysiwyg.tsx

@@ -159,11 +159,14 @@ export const textWysiwyg = ({
   // so that we don't need to create separate a callback for event handlers
   let submittedViaKeyboard = false;
   const handleSubmit = () => {
+    // cleanup must be run before onSubmit otherwise when app blurs the wysiwyg
+    // it'd get stuck in an infinite loop of blur→onSubmit after we re-focus the
+    // wysiwyg on update
+    cleanup();
     onSubmit({
       text: normalizeText(editable.value),
       viaKeyboard: submittedViaKeyboard,
     });
-    cleanup();
   };
 
   const cleanup = () => {