fix/12783-error-for-dup-model-name

[gitdallas]

fises: https://issues.redhat.com/browse/RHOAIENG-12783

Description

model name field will check against existing names and give an error help text if it matches one, it will also prevent form submission

How Has This Been Tested?

tested locally by using duplicate model name while trying to register a new model

Test Impact

added a test to check that duplicate model name prevents form submission

Request review criteria:

Self checklist (all need to be checked):

• The developer has manually tested the changes and verified that the changes work
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has added tests or explained why testing cannot be added (unit or cypress tests for related changes)

If you have UI changes:

• Included any necessary screenshots or gifs if it was a UI change.
• Included tags to the UX team if it was a UI/UX change.

After the PR is posted & before it merges:

• The developer has tested their solution on a cluster by using the image produced by the PR to main

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.25%. Comparing base (59320c8) to head (f958232).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3708   +/-   ##
=======================================
  Coverage   84.25%   84.25%           
=======================================
  Files        1463     1463           
  Lines       33746    33753    +7     
  Branches     9358     9360    +2     
=======================================
+ Hits        28433    28440    +7     
  Misses       5313     5313           

Files with missing lines	Coverage Δ
...elRegistry/screens/RegisterModel/RegisterModel.tsx	83.33% <100.00%> (+2.77%)	⬆️
...pages/modelRegistry/screens/RegisterModel/utils.ts	82.00% <100.00%> (+1.56%)	⬆️

... and 5 files with indirect coverage changes

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[mturley]

Small nit about the abstraction

[mturley]

LGTM @gitdallas , thank youuuuu for your patience with nitpicks

[openshift-ci]

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