fix: register missing Wasm snapshotter extension (backport #1069)

[mergify]

This is an automatic backport of pull request #1069 done by Mergify.
Cherry-pick of ac7d4c7 has failed:

On branch mergify/bp/release/v4.7.x/pr-1069
Your branch is up to date with 'origin/release/v4.7.x'.

You are currently cherry-picking commit ac7d4c72.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	new file:   .changeset/entries/f7bb961b8872d11fc00ebe6d43c2e5a6fae4f1fb0e63eb9f8b2d3db360260b97.yaml
	modified:   app/app.go

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   x/posts/testutil/expected_keepers_mocks.go
	both modified:   x/profiles/keeper/genesis_test.go
	deleted by us:   x/subspaces/client/cli/tx_treasury.go
	deleted by us:   x/subspaces/client/cli/tx_treasury_test.go
	deleted by us:   x/subspaces/keeper/msg_server_treasury.go
	deleted by us:   x/subspaces/legacy/v5/store.go
	deleted by us:   x/subspaces/legacy/v5/store_test.go
	both modified:   x/subspaces/types/models_test.go
	deleted by us:   x/subspaces/types/msgs_treasury_test.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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