Use bootstrap-icons; refactor some JS

templates/home/index.html.twig

@@ -7,8 +7,8 @@
 {% include 'partials/navbar.html.twig' %}
 
 <div class="columns">
-	<div class="column is-full">
-		<div id="scene"></div>
+	<div class="column is-full" data-controller="scene" data-action="keydown->scene#keyboard:prevent">
+		<div id="scene" data-scene-target="scene"></div>
 		<div id="ui" data-theme="light" data-controller="form">
 			<aside class="menu ml-4 mt-3" data-controller="clipper">
 				<p class="menu-label is-size-6">Progetto</p>
@@ -21,7 +21,7 @@
 							accept=".ifc" />
 						<span class="file-cta">
 						<span class="file-icon">
-							<i class="fas fa-upload"></i>
+							<i class="bi bi-upload"></i>
 						</span>
 						<span class="file-label">Apri file IFC...</span>
 						</span>
@@ -37,7 +37,7 @@
 							<button class="button is-primary">
 								Salva
 								<span class="icon ml-1">
-									<i class="fa fa-save"></i>
+									<i class="bi bi-floppy"></i>
 								</span>
 							</button>
 						</div>