Migration of jsx files to tsx 3 (#851)

This is in continue to:
- #850
- #848

The last files should be converted as part of this PR, there are only a
handful left.

src/components/LayerEditorGroup.tsx

@@ -18,7 +18,7 @@ type LayerEditorGroupProps = {
   title: string
   isActive: boolean
   children: React.ReactElement
-  onActiveToggle(...args: unknown[]): unknown
+  onActiveToggle(active: boolean): unknown
 };