[Glitch] Change report modal to include category selection in web UI

Port a9a43de6d1 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/reducers/rules.js

@@ -0,0 +1,13 @@
+import { RULES_FETCH_SUCCESS } from 'flavours/glitch/actions/rules';
+import { List as ImmutableList, fromJS } from 'immutable';
+
+const initialState = ImmutableList();
+
+export default function rules(state = initialState, action) {
+  switch (action.type) {
+  case RULES_FETCH_SUCCESS:
+    return fromJS(action.rules);
+  default:
+    return state;
+  }
+}