Using peekCachedSignal to speedup GpxDialog

src/db/gpx.ts

@@ -37,6 +37,8 @@ export const emptyGpx: Gpx = {
   extensions: undefined,
 };
 
+export const newEmptyGpx = () => cloneDeep(emptyGpx);
+
 export const putNewGpx = async (
   id: IdGpx = { gpx: intToGpxId(Date.now()) }
 ) => {