client Permalink Base Url
Optional base url to create client permalinks (eg. https://www.example.com/#/) instead of Matrix ones (matrix.to links). Do not forget to add the "#" which is required by the permalink parser.
Note: this field is only used for permalinks creation, you will also have to edit the string-array permalink_supported_hosts
in the config file and add it to your manifest to handle these links in the application.