PLT-3456 Fix Errors while starting the server (#3445)

* PLT-3456 AppErrors that are triggered before translations are loaded crash server or produce bad error messages.

* Fixing tests

web/web_test.go

@@ -20,6 +20,7 @@ var URL string
 
 func Setup() {
 	if api.Srv == nil {
+		utils.TranslationsPreInit()
 		utils.LoadConfig("config.json")
 		utils.InitTranslations(utils.Cfg.LocalizationSettings)
 		api.NewServer()