Vastly overhaul admin UI

Admin UI now has the ability to edit links that exist. Deleting items is
more accessible and asks for a confirmation before deleting. Link and
Category names as well as link descriptions now have a length limit
(todo: make it configurable?). Small bug fixes related to image saving
are also included in this commit.

src/templates/views/index.hbs

@@ -83,10 +83,12 @@
         <div class="p-2.5 grid grid-cols-[repeat(auto-fill,_minmax(min(330px,_100%),_1fr))] gap-2">
             {{#each this.Links}} <a href="{{this.URL}}" class="link-card" draggable="false" target="_blank"
                 rel="noopener noreferrer">
-                <img width="64" height="64" draggable="false" src="{{this.Icon}}" alt="{{this.Name}}" />
+                <div>
+                    <img width="64" height="64" draggable="false" src="{{this.Icon}}" alt="{{this.Name}}" />
+                </div>
                 <div>
                     <h3>{{this.Name}}</h3>
-                    <p>{{this.Description}}</p>
+                    <p class="min-h-5">{{this.Description}}</p>
                 </div>
             </a>
             {{else}}