add translation credits

TODO: load glyphs

src/gui/about.cpp

@@ -41,7 +41,7 @@ const char* aboutLine[]={
   "Eknous",
   "Kagamiin~",
   "laoo",
-  "LTVA1",
+  "LTVA",
   "MooingLemur",
   "OPNA2608",
   "scratchminer",
@@ -66,6 +66,18 @@ const char* aboutLine[]={
   "Lunathir",
   "tildearrow",
   "",
+  _N("-- localization/translation team --"),
+  "Español: ThaCuber, tildearrow",
+  "Հայերեն: Eknous",
+  "한국어: Heemin",
+  "Nederlands: Lunathir",
+  "Polski: freq-mod, PoznańskiSzybkowiec",
+  "Português (Brasil): Kagamiin~",
+  "Русский: Background2982, LTVA",
+  "Slovenčina: Mr. Hassium",
+  "Svenska: RevvoBolt",
+  "ไทย: akumanatt",
+  "",
   _N("-- demo songs --"),
   "0x5066",
   "Abstract 64",
@@ -121,7 +133,7 @@ const char* aboutLine[]={
   "Laggy",
   "leejh20",
   "LovelyA72",
-  "LTVA1",
+  "LTVA",
   "LunaMoth",
   "Lunathir",
   "LVintageNerd",