Transformations: Move transformation addition into drawer (#78299)

* Start splitting out code

* Use flag

* A bit of rocket surgery

* Prettify

* Cleanup behavior

* Work through behaviors

* Move empty message from other PR

* Import fixes and prettier

* Clean things up

* Add selector for tests

* Cleanups

* Working with transformation redesign

* Some more tweaks to make sure of correct behavior

* Update betterer/eslint exceptions

* Localization

* Remove unecessary fragments

* Spacing and prettier

* Update tests for new UI

* Update e2e tests

* One more e2e test fix

* Update selectors

* Fix one test and break another

packages/grafana-e2e-selectors/src/selectors/components.ts

@@ -256,7 +256,8 @@ export const Components = {
         },
       },
     },
-    searchInput: 'search transformations',
+    searchInput: 'data-testid search transformations',
+    noTransformationsMessage: 'data-testid no transformations message',
     addTransformationButton: 'data-testid add transformation button',
   },
   NavBar: {