feat:#39 linkout to other student projects

frontend/src/i18n/translations/en.json

@@ -237,6 +237,20 @@
     "eighthAnswer": "The development should also be managed by the community as an active Git project. A free version of the HTW calendar is hosted internally on the servers of the FSR IMN and is free of charge for all HTWK students.",
     "ninthQuestion": "Where could i find the source code?",
     "ninthAnswer": "If you want to contribute, you can do so at any time if you are a HTWK student. The source code is available on ",
+    "crossPromoQuestion": "More student projects.",
+    "crossPromo": {
+      "teaser": "The HTWKalender collaborates with other student projects to make your studies easier. There are probably more than those listed here. Check them out!",
+      "mensa": {
+        "title": "HTWK Mensa Mate",
+        "description": "Find the seating location of your fellow students in the HTWK Mensa Academica.",
+        "link": "https://mensa.heylinus.de/"
+      },
+      "htwkarte": {
+        "title": "HTWKarte",
+        "description": "Find your way around the campus and search for rooms. (in development)",
+        "link": "https://htwkarte.de/"
+      }
+    },
     "notFound": "Not finding what you're looking for?",
     "contact": "Get in touch"
   }