Revert "override webcrypto to a version with build hooks"

This reverts commit 4e6ba571fc.

Due to an upstream bug, this broke Linux aarch64 builds, as well as MacOS builds.

pubspec.yaml

@@ -24,11 +24,6 @@ environment:
 dependency_overrides:
     path_provider_android: 2.2.23 # Pinned to avoid JNI
     dynamic_color: 2.1.0
-    code_assets: 2.1.0 # webcrypto requires ^1.0.0, but works with 2.x
-    webcrypto:
-        git:
-            url: https://github.com/google/webcrypto.dart
-            ref: da6648cf87309af4271e312c447e0356f8fda5d1 # Uses build hooks, unreleased
     m3e_design:
         git:
             url: https://github.com/Henry-Hiles/material_3_expressive
@@ -122,6 +117,8 @@ dev_dependencies:
     riverpod_lint: 3.1.9
     flutter_launcher_icons: 0.14.4
     json_serializable: 6.14.1
+    # Transitive dep but needed for commands
+    webcrypto: 0.6.0
 
 flutter_launcher_icons:
     image_path: assets/icon.png