feat(mobile): enhance download operations (#12973)

* add packages

* create download task

* show progress

* save video and image

* show progress info

* live photo wip

* download and link live photos

* Update list of assets

* wip

* correct progress

* add state to download

* revert unncessary change

* repository pattern

* translation

* remove unused code

* update method call from repository

* remove unused variable

* handle multiple livephotos download

* remove logging statement

* lint

* not removing all records

mobile/pubspec.lock

@@ -78,6 +78,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "9.0.0"
+  background_downloader:
+    dependency: "direct main"
+    description:
+      name: background_downloader
+      sha256: "6a945db1a1c7727a4bc9c1d7c882cfb1a819f873b77e01d5e5dd6a3fb231cb28"
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.5.5"
   boolean_selector:
     dependency: transitive
     description:
@@ -744,10 +752,10 @@ packages:
     dependency: "direct main"
     description:
       name: http
-      sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
+      sha256: b9c29a161230ee03d3ccf545097fccd9b87a5264228c5d348202e0f0c28f9010
       url: "https://pub.dev"
     source: hosted
-    version: "0.13.6"
+    version: "1.2.2"
   http_multi_server:
     dependency: transitive
     description: