[hellobank] Edit description to make it distinct from "bnp" module
Both bnp and hellobank modules have the same description, which can be confusing (see Kresus for ex. which uses the description: https://framagit.org/kresusapp/kresus/-/issues/1136).
Both bnp and hellobank modules have the same description, which can be confusing (see Kresus for ex. which uses the description: https://framagit.org/kresusapp/kresus/-/issues/1136).