修复相对模式鼠标不可用

此问题有合并上游更新冲突所致

testenv/v2-hdmiusb-rpi4.override.yaml

@@ -12,6 +12,10 @@ kvmd:
             device: /dev/null
         noop: true
 
+        mouse_alt:
+            device: /dev/null
+
+    
     wol:
         mac: 00:00:00:00:00:00
 

web/kvm/index.html

@@ -264,7 +264,6 @@
             <button class="row50" data-force-hide-menu id="stream-record-start-button" i18n="kvm_text81">&bull; Start recording</button>
             <button class="row50" data-force-hide-menu id="stream-record-stop-button" i18n="kvm_text82">&bull; End recording</button>
           </div>
-          <div class="feature-disabled" id="hid-outputs">
           <hr>
           <table class="kv">
             <tr class="feature-disabled" id="hid-outputs-keyboard">
@@ -280,7 +279,6 @@
               </td>
             </tr>
           </table>
-          </div>
           <details>
             <summary i18n="kvm_text25">Keyboard &amp; Mouse (HID) settings</summary>
             <div class="spoiler">

web/kvm/navbar-system.pug

@@ -77,7 +77,6 @@ li(id="system-dropdown" class="right")
 		div(class="buttons buttons-row")
 			button(data-force-hide-menu id="stream-record-start-button" class="row50" i18n="kvm_text81") • Start recording
 			button(data-force-hide-menu id="stream-record-stop-button" class="row50" i18n="kvm_text82") • End recording
-		div(id="hid-outputs" class="feature-disabled")
 		hr
 		table(class="kv")
 			tr(id="hid-outputs-keyboard", class="feature-disabled")