fix: 0.3.8 known issues (#3912)

* fix: add a left padding to align the document and grid field

* fix: emoji picker in the slash menu is too small

* fix: replace the delete icon color with black

* fix: improve snackbar background color

* fix: cannot add new line after toggle list

* feat: set ⭐ as the default icon of getting started

* fix: the titlebar overflows when the title level is too deep

* fix: integration test

* fix: openAI hint text overflow

* fix: integration tests

frontend/appflowy_flutter/lib/plugins/database_view/widgets/row/row_document.dart

@@ -123,7 +123,7 @@ class _RowEditorState extends State<RowEditor> {
                           scrollController: widget.scrollController,
                           styleCustomizer: EditorStyleCustomizer(
                             context: context,
-                            padding: const EdgeInsets.symmetric(horizontal: 10),
+                            padding: const EdgeInsets.only(left: 16, right: 54),
                           ),
                           showParagraphPlaceholder: (editorState, node) =>
                               editorState.document.isEmpty,