Remove 'language' as field from the layoutConfigJson as it is now calculated based on the title

assets/themes/notes/notes.json

@@ -1,15 +1,16 @@
 {
   "id": "notes",
-  "language": [
-    "en"
-  ],
   "maintainer": "MapComplete",
   "startLat": 0,
   "startLon": 0,
   "startZoom": 0,
-  "title": "Notes on OpenStreetMap",
+  "title": {
+    "en": "Notes on OpenStreetMap"
+  },
   "version": "0.1",
-  "description": "A note is a pin on the map with some text to indicate something wrong.<br/><br/>Make sure to checkout the <a href='#filters'>filter view</a> to search for users and text.",
+  "description": {
+    "en": "A note is a pin on the map with some text to indicate something wrong.<br/><br/>Make sure to checkout the <a href='#filters'>filter view</a> to search for users and text."
+  },
   "icon": "./assets/svg/resolved.svg",
   "clustering": false,
   "enableDownload": true,

assets/themes/toilets/toilets.json

@@ -14,7 +14,7 @@
     "hu": "WC-térkép"
   },
   "description": {
-    "en": "A map of public toilets",
+    "en": "OpenStreetMap has the biggest dataset of toilets. Worldwide, over 300.000 toilets are known in this map. And, best of all, if one is missing, you can easily add it yourself! <br/><br/> So, if you need to pee or poo, find a loo!",
     "de": "Eine Karte mit öffentlich zugänglichen Toiletten",
     "fr": "Carte affichant les WC et toilettes publiques",
     "nl": "Een kaart met openbare toiletten",