[FIX] Omnichannel call provider option

[dougfabris]

Proposed changes (including videos or screenshots)

Jira Issue: VC-38

Issue(s)

Steps to test or reproduce

• Install some conf app
• Go to Administration > Omnichannel
• Check if there's the Default Provider and None options

Further comments

[codecov]

Codecov Report

Merging #27466 (d7a8eec) into develop (61689c8) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop   #27466      +/-   ##
===========================================
- Coverage    43.78%   43.72%   -0.07%     
===========================================
  Files          812      812              
  Lines        17176    17176              
  Branches      1902     1902              
===========================================
- Hits          7521     7510      -11     
- Misses        9402     9412      +10     
- Partials       253      254       +1     

Flag	Coverage Δ
e2e	43.72% <ø> (-0.07%)	⬇️

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