refactor: prefer named exports

see https://github.com/toddmotto/angularjs-styleguide#root-module

src/adjuster/adjuster.module.js

@@ -1,7 +1,7 @@
 import {AdjusterComponent} from './adjuster.component.js';
 import {AdjusterService} from './adjuster.service.js';
 
-angular
+export const AdjusterModule = angular
   .module('pra.adjuster', ['hs.core', 'hs.map'])
   .directive('praAdjusterSidebarBtn', function () {
     return {
@@ -14,4 +14,4 @@ angular
     return {
       template: require('./adjuster-loader.directive.html'),
     };
-  });
+  }).name;

src/app.module.js

@@ -14,10 +14,10 @@ import 'hslayers-ng/components/sidebar/sidebar.module';
 import 'hslayers-ng/components/toolbar/toolbar.module';
 // hslayers-ng components must be loaded first, otherwise angular will be undefined
 // eslint-disable-next-line sort-imports-es6-autofix/sort-imports-es6
-import './adjuster/adjuster.module.js';
 import './app.css';
 import View from 'ol/View';
 import angular from 'angular';
+import {AdjusterModule} from './adjuster/adjuster.module.js';
 import {HsComponent, nuts2Layer, nuts3Layer} from './app.component.js';
 import {OSM} from 'ol/source';
 import {Tile} from 'ol/layer';
@@ -47,7 +47,7 @@ angular
     'hs.sidebar',
     'hs.toolbar',
     'gettext',
-    'pra.adjuster',
+    AdjusterModule,
   ])
   .value('HsConfig', {
     //proxyPrefix: '../8085/',