[fix]: Fix typo in shapeType declaration (#1747)

Fix minor typo error in shapeType declaration

**Change Type**

- [x] `patch`

**Test Plan**

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

**Release Notes**

Fix typo

Co-authored-by: Steve Ruiz <steveruizok@gmail.com>

packages/tldraw/src/lib/shapes/arrow/ArrowShapeTool.ts

@@ -7,5 +7,5 @@ export class ArrowShapeTool extends StateNode {
 	static override initial = 'idle'
 	static override children = () => [Idle, Pointing]
 
-	overrideshapeType = 'arrow'
+	override shapeType = 'arrow'
 }