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

e2e/panels-suite/panelEdit_base.spec.ts

@@ -39,7 +39,7 @@ describe('Panel edit tests', () => {
         e2e.components.Tab.active().within((li: JQuery<HTMLLIElement>) => {
           expect(li.text()).equals('Transform data0'); // there's no transform so therefore Transform + 0
         });
-        e2e.components.Transforms.card('Merge series/tables').scrollIntoView().should('be.visible');
+        e2e.components.Transforms.addTransformationButton().scrollIntoView().should('be.visible');
         e2e.components.QueryTab.content().should('not.exist');
         e2e.components.AlertTab.content().should('not.exist');
         e2e.components.PanelAlertTabContent.content().should('not.exist');