added gl langugae file

NextcloudApp/NextcloudApp.csproj

@@ -99,6 +99,7 @@
     </Content>
     <None Include="NextcloudApp_StoreKey.pfx" />
     <None Include="Strings\.tx\config" />
+    <PRIResource Include="Strings\gl\Resources.resw" />
     <PRIResource Include="Strings\en-GB\Resources.resw" />
     <PRIResource Include="Strings\el\Resources.resw" />
     <PRIResource Include="Strings\ast\Resources.resw" />