Fix: hide colorpicker on mousedown

manage/config-dialog.js

@@ -9,6 +9,8 @@ function configDialog(style) {
   const elements = [];
   const colorpicker = window.colorpicker();
 
+  document.addEventListener('mousedown', onMouseDown);
+
   buildConfigForm();
   renderValues();
 
@@ -29,6 +31,7 @@ function configDialog(style) {
       t('confirmCancel')
     ]
   }).then(({button, esc}) => {
+    document.removeEventListener('mousedown', onMouseDown);
     if (button !== 1) {
       colorpicker.hide();
     }
@@ -194,4 +197,10 @@ function configDialog(style) {
       window.addEventListener('keydown', messageBox.listeners.key, true);
     }
   }
+
+  function onMouseDown(e) {
+    if (!e.target.closest('.colorpicker-popup')) {
+      colorpicker.hide();
+    }
+  }
 }