Process manager templating & game importing (#96)

* feat: add new template options, asahi support, and refactoring

* feat: install dir scanning, validation fixes, progress fixes, download manager refactor

This kind of ballooned out of scope, but I implemented some much
needed fixes for the download manager.

First off, I cleanup the Downloadable trait, there was some
duplication of function.

Second, I refactored the "validate" into the GameDownloadAgent,
which calls a 'validate_chunk_logic' yada, same structure as
downloading.

Third, I fixed the progress and validation issues.

Fourth, I added game scanning

* feat: out of box support for Asahi Linux

* fix: clippy

* fix: don't break database

types.ts

@@ -54,12 +54,13 @@ export enum GameStatusEnum {
   Remote = "Remote",
   Queued = "Queued",
   Downloading = "Downloading",
+  Validating = "Validating",
   Installed = "Installed",
   Updating = "Updating",
   Uninstalling = "Uninstalling",
   SetupRequired = "SetupRequired",
   Running = "Running",
-  PartiallyInstalled = "PartiallyInstalled"
+  PartiallyInstalled = "PartiallyInstalled",
 }
 
 export type GameStatus = {