Click to edit UI (#385)

- [x] add e2e test - happy case (make sure it clears selection and next
prompt is empty, and preview is cleared); de-selection case
- [x] shim - old & new file
- [x] upgrade path
- [x] add docs
- [x] add try-catch to parser script
- [x] make it work for next.js
- [x] extract npm package
- [x] make sure plugin doesn't apply in prod

e2e-tests/snapshots/select_component.spec.ts_deselect-component-2.aria.yml

@@ -0,0 +1,4 @@
+- img
+- text: h1 src/pages/Index.tsx:9
+- button "Deselect component":
+  - img