Differenciate "inscription" and "simple wallet"

When use "Create an account" to create a simple wallet, we get a button "Send" at the final step, which is really weird because I really expect Cesium to not send anything about my secret key and salt!

Maybe a "Create" button would be more meaningful?

Also see: https://forum.duniter.org/t/tuto-cesium-0-14-1-creation-dun-simple-portefeuille/2942

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