Remove unnecessary notistacks and dead terminal enable/disable code

- Remove 'Artikel angelegt.' snackbar from NewArticleTile
- Remove 'Kategorie angelegt.' snackbar from NewCategoryTile
- Remove dead handleEnableAllCategories method and binding from CompanySettingsDialog

src/components/CompanySettingsDialog.jsx

@@ -65,7 +65,6 @@ class CompanySettingsDialog extends Component {
     this.syncFormFromCompany = this.syncFormFromCompany.bind(this);
     this.handleCreateTerminal = this.handleCreateTerminal.bind(this);
     this.handleDeleteTerminal = this.handleDeleteTerminal.bind(this);
-    this.handleEnableAllCategories = this.handleEnableAllCategories.bind(this);
   }
 
   componentDidUpdate(prevProps) {
@@ -131,21 +130,6 @@ class CompanySettingsDialog extends Component {
     }
   }
 
-  async handleEnableAllCategories(terminal) {
-    try {
-      const hasCategories = terminal.categoryIds && terminal.categoryIds.length > 0;
-      if (hasCategories) {
-        await this.props.disableAllTerminalCategories({ terminalId: terminal.id }).unwrap();
-        enqueueSnackbar('Alle Kategorien für Terminal deaktiviert.', { variant: 'success' });
-      } else {
-        await this.props.enableAllTerminalCategories({ terminalId: terminal.id }).unwrap();
-        enqueueSnackbar('Alle Kategorien für Terminal aktiviert.', { variant: 'success' });
-      }
-    } catch (err) {
-      notifyError(err);
-    }
-  }
-
   async handleSubmit(event) {
     event.preventDefault();
     const { onClose } = this.props;