Show a link to password reset from password change and delete account (#862)

It's helpful when you forgot your password thus cannot change it
(can happen if you log in via OAuth2 or OpenID)

Also make sure that both the delete-account and password-change
links to forgot-password will have the primary email pre-filled

routers/user/auth.go

@@ -872,6 +872,9 @@ func ForgotPasswd(ctx *context.Context) {
 		return
 	}
 
+	email := ctx.Query("email")
+	ctx.Data["Email"] = email
+
 	ctx.Data["IsResetRequest"] = true
 	ctx.HTML(200, tplForgotPassword)
 }

routers/user/setting.go

@@ -193,6 +193,7 @@ func SettingsDeleteAvatar(ctx *context.Context) {
 func SettingsPassword(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("settings")
 	ctx.Data["PageIsSettingsPassword"] = true
+	ctx.Data["Email"] = ctx.User.Email
 	ctx.HTML(200, tplSettingsPassword)
 }
 
@@ -200,6 +201,7 @@ func SettingsPassword(ctx *context.Context) {
 func SettingsPasswordPost(ctx *context.Context, form auth.ChangePasswordForm) {
 	ctx.Data["Title"] = ctx.Tr("settings")
 	ctx.Data["PageIsSettingsPassword"] = true
+	ctx.Data["PageIsSettingsDelete"] = true
 
 	if ctx.HasError() {
 		ctx.HTML(200, tplSettingsPassword)
@@ -684,6 +686,7 @@ func SettingsDeleteAccountLink(ctx *context.Context) {
 func SettingsDelete(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("settings")
 	ctx.Data["PageIsSettingsDelete"] = true
+	ctx.Data["Email"] = ctx.User.Email
 
 	if ctx.Req.Method == "POST" {
 		if _, err := models.UserSignIn(ctx.User.Name, ctx.Query("password")); err != nil {