Implemented EXIF store and display (#19)

* Added EXIF extracting in the backend
* Added EXIF displaying on `image_viewer_page.dart`
* Added Icon for backup option not enable

server/src/api-v1/asset/asset.module.ts

@@ -6,6 +6,8 @@ import { AssetEntity } from './entities/asset.entity';
 import { ImageOptimizeModule } from '../../modules/image-optimize/image-optimize.module';
 import { AssetOptimizeService } from '../../modules/image-optimize/image-optimize.service';
 import { BullModule } from '@nestjs/bull';
+import { BackgroundTaskModule } from '../../modules/background-task/background-task.module';
+import { BackgroundTaskService } from '../../modules/background-task/background-task.service';
 
 @Module({
   imports: [
@@ -17,11 +19,20 @@ import { BullModule } from '@nestjs/bull';
         removeOnFail: false,
       },
     }),
+    BullModule.registerQueue({
+      name: 'background-task',
+      defaultJobOptions: {
+        attempts: 3,
+        removeOnComplete: true,
+        removeOnFail: false,
+      },
+    }),
     TypeOrmModule.forFeature([AssetEntity]),
     ImageOptimizeModule,
+    BackgroundTaskModule,
   ],
   controllers: [AssetController],
-  providers: [AssetService, AssetOptimizeService],
+  providers: [AssetService, AssetOptimizeService, BackgroundTaskService],
   exports: [],
 })
 export class AssetModule {}