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/applications.go

@@ -10,7 +10,6 @@ import (
 
 	auth_model "code.gitea.io/gitea/models/auth"
 	"code.gitea.io/gitea/models/db"
-	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/templates"
 	"code.gitea.io/gitea/modules/util"
@@ -27,7 +26,6 @@ const (
 func Applications(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("settings.applications")
 	ctx.Data["PageIsSettingsApplications"] = true
-	ctx.Data["UserDisabledFeatures"] = user_model.DisabledFeaturesWithLoginType(ctx.Doer)
 
 	loadApplicationsData(ctx)
 
@@ -39,7 +37,6 @@ func ApplicationsPost(ctx *context.Context) {
 	form := web.GetForm(ctx).(*forms.NewAccessTokenForm)
 	ctx.Data["Title"] = ctx.Tr("settings_title")
 	ctx.Data["PageIsSettingsApplications"] = true
-	ctx.Data["UserDisabledFeatures"] = user_model.DisabledFeaturesWithLoginType(ctx.Doer)
 
 	_ = ctx.Req.ParseForm()
 	var scopeNames []string