Relabel custom HS link on registration from 'Edit' to 'Change'
Relabel custom HS link on registration from 'Edit' to 'Change'

Fixes https://github.com/vector-im/riot-web/issues/8853

matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk