Computing bounding boxes when saving GPX files.

src/components/dialogs/GpxImport.tsx

@@ -26,7 +26,17 @@ const GpxImport: React.FC<{}> = () => {
         const startTime = new Date(findStartTime(gpx)!);
         dispatch({
           action: 'pruneAndSaveImportedGpx',
-          params: { id: { gpx: intToGpxId(startTime.valueOf()) }, gpx: gpx },
+          params: {
+            id: { gpx: intToGpxId(startTime.valueOf()) },
+            gpx: gpx,
+            tech: {
+              lastModified: new Date(file.lastModified).toISOString(),
+              importDate: new Date().toISOString(),
+              name: file.name,
+              size: file.size,
+              type: file.type,
+            },
+          },
         });
         // pushGpx(db, {
         //   gpx,