Save exports to database (#11040)

* Save review thumbs in dedicated folder

* Create exports table

* Save exports to DB and save thumbnail for export

* Save full frame always

* Fix rounded corners

* Save exports that are in progress

* No need to remove spaces

* Reorganize apis to use IDs

* Use new apis for frontend

* Get video playback working

* Fix deleting and renaming

* Import existing exports to DB

* Implement downloading

* Formatting

web/src/types/export.ts

@@ -0,0 +1,9 @@
+export type Export = {
+  id: string;
+  camera: string;
+  name: string;
+  date: number;
+  video_path: string;
+  thumb_path: string;
+  in_progress: boolean;
+};