Make applink UI bits translatable

src/translation/en.json

@@ -23,7 +23,10 @@
             "sso": "Log in with Cloudron credentials",
             "nosso": "Log in with dedicated account",
             "email": "Log in with email address"
-        }
+        },
+        "addAppAction": "Add App",
+        "addAppproxyAction": "Add Appproxy",
+        "addApplinkAction": "Add Applink"
     },
     "main": {
         "offline": "Cloudron is offline. Reconnecting…",
@@ -1630,7 +1633,20 @@
             },
             "description": "Custom app-specific cron jobs can be added here. Note that cron jobs required for the app to function are already integrated into the app package and don't need to be configured here."
         },
-        "forumUrlAction": "Need help? Ask in the forum"
+        "forumUrlAction": "Need help? Ask in the forum",
+        "addApplinkDialog": {
+            "title": "Add external app link"
+        },
+        "editApplinkDialog": {
+            "title": "Edit external app link",
+            "deleteAction": "Delete"
+        },
+        "applinks": {
+            "upstreamUri": "External URL",
+            "label": "Label",
+            "clearIconAction": "Clear Icon",
+            "clearIconDescription": "This will fetch the app's favicon."
+        }
     },
     "login": {
         "loginTo": "Login to",