fix regression in draggable boot order list drag image,

update Sortable.js,
fix mising icons in boot order list

app/common/meta.go

@@ -38,6 +38,10 @@ var MimeTypes = map[string]MimeType{
 		Type:     "image/svg+xml",
 		Minifier: svg.Minify,
 	},
+	"png": {
+		Type:     "image/png",
+		Minifier: nil,
+	},
 	"js": {
 		Type:     "application/javascript",
 		Minifier: js.Minify,
@@ -75,6 +79,10 @@ var MimeTypes = map[string]MimeType{
 		Type:     "image/svg+xml",
 		Minifier: nil,
 	},
+	"png": {
+		Type:     "image/png",
+		Minifier: nil,
+	},
 	"js": {
 		Type:     "application/javascript",
 		Minifier: nil,

web/scripts/draggable.js

@@ -1,4 +1,5 @@
 const blank = document.createElement("img");
+blank.src = "images/common/blank.png"; // for whatever reason an svg does NOT work here
 
 class DraggableContainer extends HTMLElement {
 	shadowRoot = null;

web/templates/config.go.tmpl

@@ -537,15 +537,15 @@
 {{define "boot-target"}}
 {{if .volume_id}}
 <div class="draggable-item" data-value="{{.volume_id}}" style="display: grid; grid-template-columns: auto auto 8ch 1fr; column-gap: 10px; align-items: center;">
-	<img alt="Drag" src="images/actions/drag.svg#symb">
-	<img alt="Volume" src="images/resources/drive.svg#symb">
+	<img style="height: 1em; width: 1em" alt="Drag" src="images/actions/drag.svg#symb">
+	<img style="height: 1em; width: 1em" alt="Volume" src="images/resources/drive.svg#symb">
 	<p style="margin: 0px;">{{.volume_id}}</p>
 	<p style="margin: 0px; overflow: hidden; white-space: nowrap;">{{.file}}</p>
 </div>
 {{else if .net_id}}
 <div class="draggable-item" data-value="{{.net_id}}" style="display: grid; grid-template-columns: auto auto 8ch 1fr; column-gap: 10px; align-items: center;">
-	<img alt="Drag" src="images/actions/drag.svg#symb">
-	<img alt="Net" src="images/resources/network.svg#symb">
+	<img style="height: 1em; width: 1em" alt="Drag" src="images/actions/drag.svg#symb">
+	<img style="height: 1em; width: 1em" alt="Net" src="images/resources/network.svg#symb">
 	<p style="margin: 0px;">{{.net_id}}</p>
 	<p style="margin: 0px; overflow: hidden; white-space: nowrap;">{{.value}}</p>
 </div>