integrating WIP-languages (#24683)

* integrating WIP-languages

* handle malformed, but "correct" empty i18n files

---------

Co-authored-by: Tom De Moor <tom@controlaltdieliet.be>
Co-authored-by: Jesse Hallam <jesse.hallam@gmail.com>

server/i18n/si.json

@@ -0,0 +1,50 @@
+[
+  {
+    "id": "November",
+    "translation": "ඉල්"
+  },
+  {
+    "id": "October",
+    "translation": "වප්"
+  },
+  {
+    "id": "September",
+    "translation": "බිනර"
+  },
+  {
+    "id": "December",
+    "translation": "උදුවප්"
+  },
+  {
+    "id": "August",
+    "translation": "නිකිණි"
+  },
+  {
+    "id": "July",
+    "translation": "ඇසළ"
+  },
+  {
+    "id": "June",
+    "translation": "පොසොන්"
+  },
+  {
+    "id": "May",
+    "translation": "වෙසක්"
+  },
+  {
+    "id": "March",
+    "translation": "මැදින්"
+  },
+  {
+    "id": "February",
+    "translation": "නවම්"
+  },
+  {
+    "id": "January",
+    "translation": "දුරුතු"
+  },
+  {
+    "id": "April",
+    "translation": "බක්"
+  }
+]