Fix react warnings (#317)

* Remove unused imports

* Fix === warnings

* Remove unnecessary escape character

* Add alt text for images

* Add missing alt text

* Remove unused variable

* Change scrubber buttons from anchors

* Change folder select anchor to button

* Replace anchors with buttons

* Add missing useEffect dependencies

* Refactor filter debounce

* Throw error object

* Update dependencies

* Fix === warning

ui/v2/src/components/scenes/SceneListPage.tsx

@@ -1,4 +1,3 @@
-import _ from "lodash";
 import React, { FunctionComponent } from "react";
 import { IBaseProps } from "../../models/base-props";
 import { SceneList } from "./SceneList";