Add mempool widget (#1242)

mempool/docker-compose.yml

@@ -76,3 +76,8 @@ services:
     networks:
        default:
          ipv4_address: $APP_MEMPOOL_DB_IP
+  widget-server:
+    image: getumbrel/umbrel-mempool-widget-server:v1.0.0@sha256:099846e613c7310deba842241477737babcdf78250fba6edf39d456712eeefc3
+    environment:
+      MEMPOOL_API_URL: "http://$APP_MEMPOOL_IP:$APP_MEMPOOL_PORT/api/v1/fees/recommended"
+    restart: on-failure

mempool/umbrel-app.yml

@@ -2,7 +2,7 @@ manifestVersion: 1
 id: mempool
 category: bitcoin
 name: mempool
-version: "2.5.0"
+version: "2.5.0-w"
 tagline: Explore the full Bitcoin ecosystem
 description: >-
   Be your own explorer.
@@ -13,7 +13,10 @@ description: >-
 
   This product includes GeoLite2 data created by MaxMind, available from https://www.maxmind.com
 releaseNotes: >-
-  This update allows users to use the Lightning explorer if the Lightning Node app is installed.
+  This update brings a brand new mempool widget, allowing you to see the recommended fees at a glance right from your umbrelOS home screen.
+
+
+  To add this widget, right-click on your home screen and select "Edit widgets", or click on Widgets in the Dock.
 developer: Mempool Space K.K.
 website: https://mempool.space/about
 dependencies:
@@ -30,5 +33,27 @@ gallery:
 path: ""
 defaultUsername: ""
 defaultPassword: ""
+widgets:
+  - id: "stats"
+    type: "four-stats"
+    refresh: "5s"
+    endpoint: "widget-server:3000/widgets/fees"
+    link: ""
+    example:
+      type: "four-stats"
+      link: ""
+      items:
+        - title: "No priority"
+          text: "2"
+          subtext: "sat/vB"
+        - title: "Low priority"
+          text: "6"
+          subtext: "sat/vB"
+        - title: "Medium priority"
+          text: "18"
+          subtext: "sat/vB"
+        - title: "High priority"
+          text: "27"
+          subtext: "sat/vB"
 submitter: Mempool Space K.K.
 submission: https://github.com/getumbrel/umbrel/pull/470