Fix user settings sidebar showing disabled features on some pages (#36958)

Move UserDisabledFeatures context data into a shared SettingsCtxData
middleware for the /user/settings route group, so it is set consistently
on all pages (including Notifications, Actions, etc.) instead of only on
the handlers that remembered to set it individually.

Fixes #36954

routers/web/user/setting/keys.go

@@ -35,7 +35,6 @@ func Keys(ctx *context.Context) {
 	ctx.Data["DisableSSH"] = setting.SSH.Disabled
 	ctx.Data["BuiltinSSH"] = setting.SSH.StartBuiltinServer
 	ctx.Data["AllowPrincipals"] = setting.SSH.AuthorizedPrincipalsEnabled
-	ctx.Data["UserDisabledFeatures"] = user_model.DisabledFeaturesWithLoginType(ctx.Doer)
 
 	loadKeysData(ctx)
 
@@ -50,7 +49,6 @@ func KeysPost(ctx *context.Context) {
 	ctx.Data["DisableSSH"] = setting.SSH.Disabled
 	ctx.Data["BuiltinSSH"] = setting.SSH.StartBuiltinServer
 	ctx.Data["AllowPrincipals"] = setting.SSH.AuthorizedPrincipalsEnabled
-	ctx.Data["UserDisabledFeatures"] = user_model.DisabledFeaturesWithLoginType(ctx.Doer)
 
 	if ctx.HasError() {
 		loadKeysData(ctx)
@@ -341,5 +339,4 @@ func loadKeysData(ctx *context.Context) {
 
 	ctx.Data["VerifyingID"] = ctx.FormString("verify_gpg")
 	ctx.Data["VerifyingFingerprint"] = ctx.FormString("verify_ssh")
-	ctx.Data["UserDisabledFeatures"] = user_model.DisabledFeaturesWithLoginType(ctx.Doer)
 }