Removed Basic Dialog from ChangePasswordDialog

[manojleaton]

Fixes #BLUI-5969 .

Changes proposed in this Pull Request:

• Fix for the issue
• Removed BasicDialog code from ChangePasswordDialog since it is no longer needed as error handling is done by ErrorManager.

Screenshots / Screen Recording (if applicable)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.52%. Comparing base (491a282) to head (a11fd22).
Report is 5 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #621      +/-   ##
==========================================
+ Coverage   72.44%   72.52%   +0.08%     
==========================================
  Files          86       86              
  Lines        1107     1103       -4     
  Branches      245      245              
==========================================
- Hits          802      800       -2     
+ Misses        126      124       -2     
  Partials      179      179              

Flag	Coverage Δ
unittests	72.52% <ø> (+0.08%)	⬆️

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Visit the preview URL for this PR (updated for commit a11fd22):

https://blui-react-login--pr621-bug-612-removed-basi-2981lnvi.web.app

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[JeffGreiner-eaton]

looks good with default error and custom