Convert locale files from ini to json format (#35489)

Migrate from the current INI format to JSON for translations. JSON is
widely supported, including by platforms such as Crowdin and Weblate.

routers/web/user/setting/account.go

@@ -57,7 +57,7 @@ func AccountPost(ctx *context.Context) {
 	}
 
 	form := web.GetForm(ctx).(*forms.ChangePasswordForm)
-	ctx.Data["Title"] = ctx.Tr("settings")
+	ctx.Data["Title"] = ctx.Tr("settings_title")
 	ctx.Data["PageIsSettingsAccount"] = true
 	ctx.Data["Email"] = ctx.Doer.Email
 
@@ -107,7 +107,7 @@ func EmailPost(ctx *context.Context) {
 	}
 
 	form := web.GetForm(ctx).(*forms.AddEmailForm)
-	ctx.Data["Title"] = ctx.Tr("settings")
+	ctx.Data["Title"] = ctx.Tr("settings_title")
 	ctx.Data["PageIsSettingsAccount"] = true
 	ctx.Data["Email"] = ctx.Doer.Email
 
@@ -237,7 +237,7 @@ func DeleteAccount(ctx *context.Context) {
 		return
 	}
 
-	ctx.Data["Title"] = ctx.Tr("settings")
+	ctx.Data["Title"] = ctx.Tr("settings_title")
 	ctx.Data["PageIsSettingsAccount"] = true
 	ctx.Data["Email"] = ctx.Doer.Email