Fix alt-duplicating shapes sometimes not working (#3488)

This PR fixes alt-duplicating shapes not working if you pointer-down'd
on their text label.

fixes
https://github.com/orgs/tldraw/projects/41/views/1?pane=issue&itemId=59901721

### Change Type

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- [x] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
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- [ ] `internal` — Does not affect user-facing stuff

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- [x] `bugfix` — Bug fix
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- [ ] `galaxy brain` — Architectural changes
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- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know


### Test Plan

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2.

- [ ] Unit Tests
- [ ] End to end tests

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packages/tldraw/src/lib/tools/SelectTool/childStates/PointingShape.ts

@@ -215,6 +215,9 @@ export class PointingShape extends StateNode {
 
 	private startTranslating(info: TLPointerEventInfo) {
 		if (this.editor.getInstanceState().isReadonly) return
+
+		// Re-focus the editor, just in case the text label of the shape has stolen focus
+		this.editor.getContainer().focus()
 		this.parent.transition('translating', info)
 	}