Dev context simplify

app/imports/ui/components/admin/GroupUsersList.jsx

app/imports/ui/components/groups/GroupDetails.jsx

...imports/ui/components/mediaStorage/SelectedMediaModal.jsx

app/imports/ui/components/menus/TopBar.jsx

app/imports/ui/components/personalspace/PersonalZone.jsx

app/imports/ui/components/system/LanguageSwitcher.jsx

app/imports/ui/components/uploader/ImageAdminUploader.jsx

app/imports/ui/components/uploader/UploaderNotifier.jsx

app/imports/ui/contexts/context.jsx

app/imports/ui/layouts/App.jsx

app/imports/ui/layouts/MainLayout.jsx

app/imports/ui/pages/MediaStoragePage.jsx

app/imports/ui/pages/admin/AdminSettingsPage.jsx

app/imports/ui/pages/admin/AdminSingleGroupPage.jsx

app/imports/ui/pages/admin/AdminUsersPage.jsx

app/imports/ui/pages/articles/ArticlesPage.jsx

app/imports/ui/pages/articles/EditArticlePage.jsx

app/imports/ui/pages/articles/PublicArticleDetailsPage.jsx

app/imports/ui/pages/articles/PublicArticlePage.jsx

app/imports/ui/pages/articles/PublishersPage.jsx