[Glitch] Add stricter ESLint rules for Typescript files

Port 5eeb40bdbe to glitch-soc

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

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

@@ -2,13 +2,13 @@ import {
   MARKERS_SUBMIT_SUCCESS,
 } from '../actions/markers';
 
+import { Map as ImmutableMap } from 'immutable';
+
 const initialState = ImmutableMap({
   home: '0',
   notifications: '0',
 });
 
-import { Map as ImmutableMap } from 'immutable';
-
 export default function markers(state = initialState, action) {
   switch(action.type) {
   case MARKERS_SUBMIT_SUCCESS: