feat: Add people management page + zero state

[kiram15]

To test:

• In EnterpriseAppRoutes.jsx change line 120 to {enterpriseAppPage === ROUTE_NAMES.peopleManagement && (
• in Sidebar/index.jsx, comment out line 158 (the hidden property of the People Management page)
• run npm run start:stage and ensure you can see the People Management tab in the sidebar
  Jira | Figma

For all changes

• Ensure adequate tests are in place (or reviewed existing tests cover changes)

Only if submitting a visual change

• Ensure to attach screenshots
• Ensure to have UX team confirm screenshots

[codecov]

Codecov Report

Attention: Patch coverage is 94.73684% with 1 line in your changes missing coverage. Please review.

Project coverage is 85.63%. Comparing base (e3b1452) to head (19a5915).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...c/components/EnterpriseApp/EnterpriseAppRoutes.jsx	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1322      +/-   ##
==========================================
+ Coverage   85.62%   85.63%   +0.01%     
==========================================
  Files         576      577       +1     
  Lines       12700    12719      +19     
  Branches     2691     2705      +14     
==========================================
+ Hits        10874    10892      +18     
  Misses       1766     1766              
- Partials       60       61       +1     

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[katrinan029]

looks good so far! I have just a few comments/questions.

[katrinan029]

I think we need to make a few changes to match the updates in figma, but otherwise looks good so far!