Second step of updating deprecated code

lib/src/widgets/editor/editor.dart

@@ -307,10 +307,10 @@ class QuillEditorState extends State<QuillEditor>
       // that might interfere with the editor key behavior, such as
       // SingleChildScrollView. Thanks to @wliumelb for the workaround.
       // See issue https://github.com/singerdmx/flutter-quill/issues/304
-      return RawKeyboardListener(
-        onKey: (_) {},
+      return KeyboardListener(
+        onKeyEvent: (_) {},
         focusNode: FocusNode(
-          onKey: (node, event) => KeyEventResult.skipRemainingHandlers,
+          onKeyEvent: (node, event) => KeyEventResult.skipRemainingHandlers,
         ),
         child: editor,
       );
@@ -453,10 +453,11 @@ class _QuillEditorSelectionGestureDetectorBuilder
   }
 
   bool isShiftClick(PointerDeviceKind deviceKind) {
-    final pressed = RawKeyboard.instance.keysPressed;
     return deviceKind == PointerDeviceKind.mouse &&
-        (pressed.contains(LogicalKeyboardKey.shiftLeft) ||
-            pressed.contains(LogicalKeyboardKey.shiftRight));
+        (HardwareKeyboard.instance
+                .isLogicalKeyPressed(LogicalKeyboardKey.shiftLeft) ||
+            HardwareKeyboard.instance
+                .isLogicalKeyPressed(LogicalKeyboardKey.shiftRight));
   }
 
   @override
@@ -739,8 +740,10 @@ class RenderEditor extends RenderEditableContainerBox
   }
 
   bool get _shiftPressed =>
-      RawKeyboard.instance.keysPressed.contains(LogicalKeyboardKey.shiftLeft) ||
-      RawKeyboard.instance.keysPressed.contains(LogicalKeyboardKey.shiftRight);
+      HardwareKeyboard.instance
+          .isLogicalKeyPressed(LogicalKeyboardKey.shiftLeft) ||
+      HardwareKeyboard.instance
+          .isLogicalKeyPressed(LogicalKeyboardKey.shiftRight);
 
   void setStartHandleLayerLink(LayerLink value) {
     if (_startHandleLayerLink == value) {

lib/src/widgets/others/default_styles.dart

@@ -1,5 +1,3 @@
-import 'dart:ui';
-
 import 'package:flutter/material.dart';
 
 import '../../models/documents/attribute.dart';

lib/src/widgets/raw_editor/raw_editor_state.dart

@@ -14,7 +14,7 @@ import 'package:flutter/services.dart'
         ClipboardData,
         HardwareKeyboard,
         LogicalKeyboardKey,
-        RawKeyDownEvent,
+        KeyDownEvent,
         SystemChannels,
         TextInputControl;
 import 'package:flutter_keyboard_visibility/flutter_keyboard_visibility.dart'
@@ -782,7 +782,7 @@ class QuillRawEditorState extends EditorState
             }),
             child: Focus(
               focusNode: widget.configurations.focusNode,
-              onKey: _onKey,
+              onKeyEvent: _onKeyEvent,
               child: QuillKeyboardListener(
                 child: Container(
                   constraints: constraints,
@@ -796,13 +796,15 @@ class QuillRawEditorState extends EditorState
     );
   }
 
-  KeyEventResult _onKey(node, RawKeyEvent event) {
+  KeyEventResult _onKeyEvent(node, KeyEvent event) {
     // Don't handle key if there is a meta key pressed.
-    if (event.isAltPressed || event.isControlPressed || event.isMetaPressed) {
+    if (HardwareKeyboard.instance.isAltPressed ||
+        HardwareKeyboard.instance.isControlPressed ||
+        HardwareKeyboard.instance.isMetaPressed) {
       return KeyEventResult.ignored;
     }
 
-    if (event is! RawKeyDownEvent) {
+    if (event is! KeyDownEvent) {
       return KeyEventResult.ignored;
     }
     // Handle indenting blocks when pressing the tab key.
@@ -824,7 +826,7 @@ class QuillRawEditorState extends EditorState
     return KeyEventResult.ignored;
   }
 
-  KeyEventResult _handleSpaceKey(RawKeyEvent event) {
+  KeyEventResult _handleSpaceKey(KeyEvent event) {
     final child =
         controller.document.queryChild(controller.selection.baseOffset);
     if (child.node == null) {
@@ -855,7 +857,7 @@ class QuillRawEditorState extends EditorState
     return KeyEventResult.handled;
   }
 
-  KeyEventResult _handleTabKey(RawKeyEvent event) {
+  KeyEventResult _handleTabKey(KeyEvent event) {
     final child =
         controller.document.queryChild(controller.selection.baseOffset);