Set HCaptchaSiteKey on Link Account pages

When using HCaptcha on link account pages the site key needs to be passed
in. This PR ensures that HCaptchaSiteKey is set in the data.

Fix #14766

Signed-off-by: Andrew Thornton <art27@cantab.net>

routers/user/auth.go

@@ -751,6 +751,7 @@ func LinkAccount(ctx *context.Context) {
 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
 	ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
+	ctx.Data["HcaptchaSitekey"] = setting.Service.HcaptchaSitekey
 	ctx.Data["DisableRegistration"] = setting.Service.DisableRegistration
 	ctx.Data["ShowRegistrationButton"] = false
 
@@ -804,6 +805,7 @@ func LinkAccountPostSignIn(ctx *context.Context) {
 	ctx.Data["Captcha"] = context.GetImageCaptcha()
 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
+	ctx.Data["HcaptchaSitekey"] = setting.Service.HcaptchaSitekey
 	ctx.Data["DisableRegistration"] = setting.Service.DisableRegistration
 	ctx.Data["ShowRegistrationButton"] = false
 
@@ -890,6 +892,7 @@ func LinkAccountPostRegister(ctx *context.Context) {
 	ctx.Data["Captcha"] = context.GetImageCaptcha()
 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
+	ctx.Data["HcaptchaSitekey"] = setting.Service.HcaptchaSitekey
 	ctx.Data["DisableRegistration"] = setting.Service.DisableRegistration
 	ctx.Data["ShowRegistrationButton"] = false