[fix] exit penmode (#1847)

This PR fixes the "Exit Pen Mode" button (see first commit).

There are some other "wrap some stuff in editor.batch" changes in the
"follow up changes" commit.

### Change Type

- [x] `patch` — Bug fix

### Test Plan

1. Use an ipad / pencil to enter pen mode
2. Click the Exit pen mode button

packages/tldraw/src/lib/ui/hooks/useActions.tsx

@@ -273,6 +273,7 @@ export function ActionsProvider({ overrides, children }: ActionsProviderProps) {
 				label: 'action.convert-to-bookmark',
 				readonlyOk: false,
 				onSelect(source) {
+					editor.batch(() => {
 						trackEvent('convert-to-bookmark', { source })
 						const shapes = editor.selectedShapes
 
@@ -305,6 +306,7 @@ export function ActionsProvider({ overrides, children }: ActionsProviderProps) {
 						editor.mark('convert shapes to bookmark')
 						editor.deleteShapes(deleteList)
 						editor.createShapes(createList)
+					})
 				},
 			},
 			{
@@ -313,6 +315,8 @@ export function ActionsProvider({ overrides, children }: ActionsProviderProps) {
 				readonlyOk: false,
 				onSelect(source) {
 					trackEvent('convert-to-embed', { source })
+
+					editor.batch(() => {
 						const ids = editor.selectedShapeIds
 						const shapes = compact(ids.map((id) => editor.getShape(id)))
 
@@ -355,6 +359,7 @@ export function ActionsProvider({ overrides, children }: ActionsProviderProps) {
 						editor.mark('convert shapes to embed')
 						editor.deleteShapes(deleteList)
 						editor.createShapes(createList)
+					})
 				},
 			},
 			{
@@ -682,6 +687,7 @@ export function ActionsProvider({ overrides, children }: ActionsProviderProps) {
 				kbd: '$a',
 				readonlyOk: true,
 				onSelect(source) {
+					editor.batch(() => {
 						trackEvent('select-all-shapes', { source })
 						if (editor.currentToolId !== 'select') {
 							editor.cancel()
@@ -690,6 +696,7 @@ export function ActionsProvider({ overrides, children }: ActionsProviderProps) {
 
 						editor.mark('select all kbd')
 						editor.selectAll()
+					})
 				},
 			},
 			{
@@ -915,12 +922,9 @@ export function ActionsProvider({ overrides, children }: ActionsProviderProps) {
 				readonlyOk: true,
 				onSelect(source) {
 					trackEvent('toggle-debug-mode', { source })
-					editor.updateInstanceState(
-						{
+					editor.updateInstanceState({
 						isDebugMode: !editor.instanceState.isDebugMode,
-						},
-						{ ephemeral: true }
-					)
+					})
 				},
 				checkbox: true,
 			},
@@ -941,7 +945,7 @@ export function ActionsProvider({ overrides, children }: ActionsProviderProps) {
 				readonlyOk: true,
 				onSelect(source) {
 					trackEvent('exit-pen-mode', { source })
-					editor.instanceState.isPenMode = false
+					editor.updateInstanceState({ isPenMode: false })
 				},
 			},
 			{