Refactor icons in web UI to use Icon component (#9951)

* Refactor uses of icons to an Icon component in web UI

* Refactor options passed to the Icon component

* Make tests work with absolute component paths

.eslintrc.js

@@ -41,6 +41,11 @@ module.exports = {
       'node_modules',
       '\\.(css|scss|json)$',
     ],
+    'import/resolver': {
+      node: {
+        paths: ['app/javascript'],
+      },
+    },
   },
 
   rules: {