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/block.go

@@ -6,7 +6,6 @@ package setting
 import (
 	"net/http"
 
-	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/templates"
 	shared_user "code.gitea.io/gitea/routers/web/shared/user"
@@ -20,7 +19,6 @@ const (
 func BlockedUsers(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("user.block.list")
 	ctx.Data["PageIsSettingsBlockedUsers"] = true
-	ctx.Data["UserDisabledFeatures"] = user_model.DisabledFeaturesWithLoginType(ctx.Doer)
 
 	shared_user.BlockedUsers(ctx, ctx.Doer)
 	if ctx.Written() {