fix: show contextual toast when saving with no targets

Instead of always showing "Settings updated" when saving, show
"Targets cleared" when the target list is empty. This gives the user
accurate feedback without blocking the save action.

Fixes #586

src/app/[orgId]/settings/resources/proxy/[niceId]/proxy/page.tsx

@@ -774,8 +774,12 @@ function ProxyResourceTargetsForm({
             }
 
             toast({
-                title: t("settingsUpdated"),
-                description: t("settingsUpdatedDescription")
+                title: targets.length === 0
+                    ? t("targetTargetsCleared")
+                    : t("settingsUpdated"),
+                description: targets.length === 0
+                    ? t("targetTargetsClearedDescription")
+                    : t("settingsUpdatedDescription")
             });
 
             setTargetsToRemove([]);