users: use generic destinations for user CM create dialog component

[tony-tvu]

• Identified the issue which this PR solves.
• Read the CONTRIBUTING document.
• Code builds clean without any errors or warnings.
• Added appropriate tests for any new functionality.
• All new and existing tests passed.
• Added comments in the code, where necessary.
• Ran make check to catch common errors. Fixed any that came up.

Description:
This PR updates the UserContactMethod create and dialog components to use generic destinations when the experimental flag is set make start EXPERIMENTAL=dest-types.

Which issue(s) this PR fixes:
part of #2639

Out of Scope:
N/A

Screenshots:

Describe any introduced user-facing changes:
N/A, behavior should be the same as today.

Describe any introduced API changes:
N/A

Additional Info:
N/A

[mastercactapus]

Noticed a couple issues when functionally testing:

• the docs page in storybook seems broken, maybe we disable those for dialogs? unless there's a way to fix (related issue: Popup or Modal type component persist in screen if go to Docs or Guideline storybookjs/storybook#16949 -- looks like some things to try)
• errors aren't being fed -- i.e., enter 123 as a phone number and the validation error doesn't display
• create dialog says status updates aren't supported for SMS which is incorrect

[mastercactapus]

For the error stuff I think that's going to require a bit of extra thought; working on dest-error-api branch

[tony-tvu]

For the error stuff I think that's going to require a bit of extra thought; working on dest-error-api branch

Sounds good. Thanks for pushing up the fixes to this branch!