Fix user settings sidebar showing disabled features on some pages (#36958) (#36969)

Backport #36958 by @bircni

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

Co-authored-by: Nicolas <bircni@icloud.com>

routers/web/user/setting/security/security.go

@@ -156,5 +156,4 @@ func loadSecurityData(ctx *context.Context) {
 		return
 	}
 	ctx.Data["OpenIDs"] = openid
-	ctx.Data["UserDisabledFeatures"] = user_model.DisabledFeaturesWithLoginType(ctx.Doer)
 }