Update screenshots

CloudronManifest.json

@@ -31,9 +31,9 @@
   "forumUrl": "https://forum.cloudron.io/category/56/syncthing",
   "documentationUrl": "https://cloudron.io/documentation/apps/syncthing/",
   "mediaLinks": [
-    "https://cloudron-app-screenshots.s3.amazonaws.com/net.syncthing.cloudronapp2/53bc9300d71bb5bf32362f8213194a0c3a415429/1.png",
+    "https://screenshots.cloudron.io/net.syncthing.cloudronapp2/1.png",
-    "https://cloudron-app-screenshots.s3.amazonaws.com/net.syncthing.cloudronapp2/53bc9300d71bb5bf32362f8213194a0c3a415429/2.png",
+    "https://screenshots.cloudron.io/net.syncthing.cloudronapp2/2.png",
-    "https://cloudron-app-screenshots.s3.amazonaws.com/net.syncthing.cloudronapp2/53bc9300d71bb5bf32362f8213194a0c3a415429/3.png"
+    "https://screenshots.cloudron.io/net.syncthing.cloudronapp2/3.png"
   ],
   "postInstallMessage": "file://POSTINSTALL.md"
 }

POSTINSTALL.md

@@ -1,7 +1,7 @@
 This app is pre-setup with an admin account. The initial credentials are:
 
-**Username**: admin <br/>
+**Username**: admin<br/>
-**Password**: changeme <br/>
+**Password**: changeme<br/>
 
 Please change the admin password immediately.