React/Jest tests for ClockingTable.js

[shivaahir158]

Motivate of the pull request

• To address an existing issue. If so, please provide a link to the issue:
• Breaking new feature. If so, please describe details in the description part.

Describe the technical details -

Verified that the ClockingTable renders with correct elements - Clocking, Clock power, Clocks, and PLLs.

Which part of the code base require a change

• Frontend: ClockingTable.test.js
• Backend:
• Library: <Specify the library name, e.g. npm packages>
• Plug-in: <Specify the plugin name, e.g. Webpack, jtest>
• Documentation
• Regression tests
• Continuous Integration (CI) scripts

Impact of the pull request

• Require a change on Quality of Results (QoR)
• Break backward-compatibility. If so, please list who may be influenced.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.46%. Comparing base (2822507) to head (a37079e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #239      +/-   ##
==========================================
+ Coverage   69.39%   69.46%   +0.06%     
==========================================
  Files         110      110              
  Lines        8607     8607              
==========================================
+ Hits         5973     5979       +6     
+ Misses       2634     2628       -6     

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