Remove thumbnail generation on mobile app (#292)

* Remove thumbnail generation on mobile

* Remove tconditions for missing thumbnail on the backend

* Remove console.log

* Refactor queue systems

* Convert queue and processor name to constant

* Added corresponding interface to job queue

server/nest-cli.json

@@ -34,6 +34,15 @@
       "compilerOptions": {
         "tsConfigPath": "libs/database/tsconfig.lib.json"
       }
+    },
+    "job": {
+      "type": "library",
+      "root": "libs/job",
+      "entryFile": "index",
+      "sourceRoot": "libs/job/src",
+      "compilerOptions": {
+        "tsConfigPath": "libs/job/tsconfig.lib.json"
+      }
     }
   }
-}
+}