refactor(mobile): device asset entity to use modified time (#17064)

* refactor: device asset entity to use modified time

* chore: cleanup

* refactor: remove album media dependency from hashservice

* refactor: return updated copy of asset

* add hash service tests

* chore: rename hash batch constants

* chore: log the number of assets processed during migration

* chore: more logs

* refactor: use lookup and more tests

* use sort approach

* refactor hash service to use for loop instead

* refactor: rename to getByIds

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Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

mobile/pubspec.lock

@@ -463,7 +463,7 @@ packages:
     source: hosted
     version: "2.1.4"
   file:
-    dependency: transitive
+    dependency: "direct dev"
     description:
       name: file
       sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4