[1.x] Slot Empty Checking & Return Default Value (#389)

* Slot Empty Checking & Return Default Value

Component slot return always HtmlString. That's why while using <x-action-message on="saved" /> isset isn't checking & default 'saved.' text not showing. isEmpty() check could show default message.

* Update action-message.blade.php

Co-authored-by: Dries Vints <[email protected]>

Author: imtiazPabel

Diff for: resources/views/components/action-message.blade.php

@@ -5,5 +5,5 @@
     x-show.transition.opacity.out.duration.1500ms="shown"
     style="display: none;"
     {{ $attributes->merge(['class' => 'text-sm text-gray-600']) }}>
-    {{ $slot ?? 'Saved.' }}
+    {{ $slot->isEmpty() ? 'Saved.' : $slot }}
 </div>