Forms migration: Old Select to Legacy namespace (#23200)

* Export other components as Legacy

* More Select Legacy

* Add namespacing to more files

* Export new elements

* Move Legacy Select folder

* Let's not forget the scss file

* Move new Select folder

* Move new Select from Forms namespace

* Little oopsie

* Fix errors

* Fix merge issues

public/app/features/expressions/ExpressionQueryEditor.tsx

@@ -1,7 +1,8 @@
 // Libraries
 import React, { PureComponent, ChangeEvent } from 'react';
 
-import { FormLabel, Select, FormField } from '@grafana/ui';
+import { FormLabel, LegacyForms, FormField } from '@grafana/ui';
+const { Select } = LegacyForms;
 import { SelectableValue, ReducerID, QueryEditorProps } from '@grafana/data';
 
 // Types