Add final newlines and fix linting issues

deepsea/data/config.json

@@ -4,4 +4,5 @@
     "wallet": "yourwallethere",
     "timezone": "America/Los_Angeles",
     "network_fee": 0.0
-  }
+  }
+  

deepsea/docker-compose.yml

@@ -11,4 +11,4 @@ services:
     user: 1000:1000
     restart: on-failure
     volumes:
-      - ${APP_DATA_DIR}/data/:/app/data/
+      - ${APP_DATA_DIR}/data/:/app/data/

deepsea/umbrel-app.yml

@@ -4,7 +4,6 @@ category: bitcoin
 name: DeepSea Dashboard
 version: "0.9.2"
 tagline: Retro style Ocean dashboard
-icon: ""
 description: >-
   Customized Ocean.xyz Bitcoin Mining Pool Dashboard
   
@@ -16,8 +15,8 @@ dependencies: []
 repo: https://github.com/Djobleezy/DeepSea-Dashboard.git
 support: https://github.com/Djobleezy/DeepSea-Dashboard/issues
 port: 5300
-gallery: ""
+gallery: []
 path: ""
 releaseNotes: ""
 submitter: Léo Haf
-submission: https://github.com/getumbrel/umbrel-apps/pull/2635
+submission: https://github.com/getumbrel/umbrel-apps/pull/2635