Package version (if known): HEAD (seen on invenio-app-rdm@13.0.2)

Describe the bug

When a name has multiple identifiers, they are sometimes combined with no space in between. This is visually unpleasing but also breaks screenreaders since they're reading not the identifier but the identifier with the next identifiers scheme postfixed.

Steps to Reproduce

1. Create a name with multiple identifiers not in the list of makeIdEntry cases (orcid, gnd, ror, isni, grid), example:

- affiliations:
  - id: 01mmcf932
  family_name: Phetteplace
  given_name: Eric
  id: https://portal.cca.edu/people/ephetteplace/
  identifiers:
  - identifier: https://portal.cca.edu/people/ephetteplace/
    scheme: url
  - identifier: ephetteplace@cca.edu
    scheme: email

2. Go to the deposit form
3. Add a Creator or Contributor
4. Search for a string that will bring up the name, e.g. "Phetteplace"
5. The two id strings are stuck together: url: https://portal.cca.edu/people/ephetteplace/email: ephetteplace@cca.edu

Expected behavior

There should be a space in between each identifier and the scheme of the following one: url: https://portal.cca.edu/people/ephetteplace/ email: ephetteplace@cca.edu

Screenshots (if applicable)

Additional context

This occurs in src/lib/elements/contrib/invenioRDM/records/AffiliationsSuggestions.js and could be fixed in either the makeIdEntry or AffiliationsSuggestions functions. I will submit a small PR.