refactor(public-api): use TokenAuthGuard on controller not method level

As the public api is nearly completely protected by the TokenAuthGuard it seems unnecessarily verbose to add the guard to every method in the controllers, when an annotation at the top of the controller would be sufficient.

Signed-off-by: Philip Molares <philip.molares@udo.edu>

src/api/public/me/me.controller.ts

@@ -9,7 +9,6 @@ import {
   Delete,
   Get,
   HttpCode,
-  NotFoundException,
   Put,
   UseGuards,
   UseInterceptors,
@@ -24,7 +23,6 @@ import {
 } from '@nestjs/swagger';
 
 import { TokenAuthGuard } from '../../../auth/token.strategy';
-import { NotInDBError } from '../../../errors/errors';
 import { HistoryEntryUpdateDto } from '../../../history/history-entry-update.dto';
 import { HistoryEntryDto } from '../../../history/history-entry.dto';
 import { HistoryService } from '../../../history/history.service';

src/api/public/monitoring/monitoring.controller.ts

@@ -21,13 +21,13 @@ import {
   unauthorizedDescription,
 } from '../../utils/descriptions';
 
+@UseGuards(TokenAuthGuard)
 @ApiTags('monitoring')
 @ApiSecurity('token')
 @Controller('monitoring')
 export class MonitoringController {
   constructor(private monitoringService: MonitoringService) {}
 
-  @UseGuards(TokenAuthGuard)
   @Get()
   @ApiOkResponse({
     description: 'The server info',
@@ -40,7 +40,6 @@ export class MonitoringController {
     return this.monitoringService.getServerStatus();
   }
 
-  @UseGuards(TokenAuthGuard)
   @Get('prometheus')
   @ApiOkResponse({
     description: 'Prometheus compatible monitoring data',

src/api/public/notes/notes.controller.ts

@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import {
-  BadRequestException,
   Body,
   Controller,
   Delete,