Admin Panel Improvements:

- Updated custom admin controllers to EasyAdmin AdminRoutes.
- Added Admin error page.
- Various fixes and improvements.

templates/admin/photo_manager/index.html.twig

@@ -4,25 +4,39 @@
 {% block content_title 'Photo Manager' %}
 {% block main %}
 
-	<a class="btn btn-primary m-3" href="{{ ea_url().setRoute('admin_photos_upload') }}">
-		Add new
-	</a>
+<a class="btn btn-primary m-3" href="{{ path('admin_photos_upload') }}">
+	Add new
+</a>
 
-	<div style="display: flex; flex-direction: row; flex-wrap: wrap; gap: 18px;">
-		{% for photo in photoList %}
-			<div class="card text-center" style="width: 40%;">
-				<p>{{photo.filename}}</p>
-				<img src="{{ asset(photo.url) }}" style="max-width: 80%;"/>
-				<br>
-				<a class="btn btn-outline-primary m-2">
-					<i class="fas fa-clipboard">&nbsp;&nbsp;Copy!</i>
-				</a>
-				<a class="btn btn-primary m-2 mt-1" href="{{ ea_url().setRoute('admin_photos_remove', { filename: photo.filename }) }}">
-					Delete
-				</a>
-			</div>
-		{% endfor %}
+<div style="display: flex; flex-direction: row; flex-wrap: wrap; gap: 18px;">
+	{% for photo in photoList %}
+	<div class="card text-center" style="width: 40%;">
+		<p>{{photo.filename}}</p>
+		<img src="{{ asset(photo.url) }}" style="max-width: 80%;" />
+		<br>
+		<a class="btn btn-outline-primary m-2"
+			href="javascript:CopyImageLinkToClipboard('{{absolute_url(photo.url)}}')">
+			<i class="fas fa-clipboard">&nbsp;&nbsp;Copy!</i>
+		</a>
+		<a class="btn btn-danger m-2 mt-1" href="{{ path('admin_photos_remove', { filename: photo.filename }) }}">
+			Delete
+		</a>
 	</div>
+	{% endfor %}
+</div>
 
 {% endblock %}
 
+{% block body_javascript %}
+
+<script>
+	async function CopyImageLinkToClipboard(imgLink) {
+		try {
+			await navigator.clipboard.writeText(imgLink);
+		} catch (error) {
+			console.error(error.message);
+		}
+	}
+</script>
+
+{% endblock body_javascript %}