Migration: double check modules are all using cosmos 47 param style

[danwt]

In cosmos 47 params should now all be kept in module rather than in x/params

https://docs.cosmos.network/main/build/migrations/upgrading#xparams

Need to check we do it everywhere, and run a migration if not

Example cosmos/cosmos-sdk#12363

[mtsitrin]

we don't do it in most of our code base
it's backward compatibility, so not sure regarding the priority for this
we have all osmo and ethermint to migrate, and some of our modules

[danwt]

I see, it seems like it's only mandatory if upgrading to v50
closing for now