🐛(frontend) fix break line on firefox

On firefox with collaborative mode, the last
upgrade of ProseMirror added a new line when
a another user was typing. This commit fixes this
issue.

src/frontend/apps/impress/src/features/pads/pad-editor/components/BlockNoteEditor.tsx

@@ -69,6 +69,9 @@ export const BlockNoteContent = ({ pad, provider }: BlockNoteContentProps) => {
         &, & > .bn-container, & .ProseMirror {
           height:100%
         };
+        & .collaboration-cursor__caret.ProseMirror-widget{
+          word-wrap: initial;
+        }
       `}
     >
       <BlockNoteView