Block backspace key event at start of custom editable inline content#435

YousefED merged 5 commits into

refactor/tables-customelements-copypasteTypeCellOS/BlockNote:refactor/tables-customelements-copypastefrom

refactor/editable-inline-content-backspaceTypeCellOS/BlockNote:refactor/editable-inline-content-backspaceCopy head branch name to clipboard