FIO-8304: allow for multivalue masks to have blank input mask option

[ZenMasterJacob20011]

Link to Jira Ticket

https://formio.atlassian.net/browse/FIO-8304

Description

What changed?

Previously, formio.js would keep the original input mask when switching from a input mask to a blank input mask in a multivalue input mask component. This PR replaces this behavior by removing the previous input mask if a blank input mask is given

Dependencies

N/A

How has this PR been tested?

I added automated tests and manually tested

Checklist:

• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• My changes include tests that prove my fix is effective (or that my feature works as intended)
• New and existing unit/integration tests pass locally with my changes
• Any dependent changes have corresponding PRs that are listed above