Don't close modal on focus change (FreeTubeApp#6492)

Opening modal causes focus change, so if you close modal on focus out, it won't open modal

src/renderer/components/ft-icon-button/ft-icon-button.js

@@ -153,7 +153,7 @@ export default defineComponent({
     },
 
     handleDropdownFocusOut: function () {
-      if (this.dropdownShown && !this.$refs.ftIconButton.matches(':focus-within')) {
+      if (!this.useModal && this.dropdownShown && !this.$refs.ftIconButton.matches(':focus-within')) {
         this.dropdownShown = false
       }
     },