Move all remaining global styles to `styles` folder

src/components/Logbook/Menu/EventListMenu.js

@@ -19,7 +19,6 @@ import {
 import LogbookPager from '../LogbookPager';
 import EventListMenuButton from './EventListMenuButton';
 import NewlyAvailableEventsDialogue from './NewlyAvailableEventsDialogue';
-import './eventListMenu.css';
 
 /**
  * The menu displayed above the event list

src/components/Menu/Menu.js

@@ -6,7 +6,6 @@ import UI from '../../config/ui/config';
 import BreadCrumbs from '../Breadcrumbs/BreadCrumbs';
 import ManagerMenu from './ManagerMenu';
 import keycloak from '../../config/sso/keycloak';
-import './glyphicon-spinner.css';
 import { useSelector, useDispatch } from 'react-redux';
 import { doLogOut } from '../../actions/login';
 import { fetchInvestigationsAsInstrumentScientist } from '../../actions/investigations';

src/containers/CameraPage.js

@@ -4,7 +4,6 @@ import Camera, { FACING_MODES } from 'react-html5-camera-photo';
 import { connect } from 'react-redux';
 import { setBreadCrumbs } from '../actions/breadcrumbs';
 import { createEventFromBase64 } from '../api/icat/icatPlus';
-import './CameraPage.css';
 
 class CameraPage extends Component {
   /* TODO: This should be refactored */

src/containers/Logbook/LogbookContainer.js

@@ -35,7 +35,6 @@ import {
   getSelectionFiltersBySearchCriteria,
   getSelectionFiltersForMongoQuery,
 } from './SelectionFilterHelper';
-import '../../components/Logbook/event.css';
 
 /**
  * This class represents the event container component. It's role is to retrieve events from the server asynchronuously.

src/index.css

 @import 'styles/base.css';
+@import 'styles/glyphicon-spinner.css';
+@import 'styles/event-list-menu.css';
+@import 'styles/event.css';
+@import 'styles/camera-page.css';