Implementing PagesRouter to navigate between packages

[ghost]

Description

• Implementing a class to navigate between different packages in studio

Related Issue(s)

• Create functionality to navigate from a route in one package to a route in another package #11447

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (99fa433) 86.35% compared to head (84d2309) 86.37%.
Report is 1 commits behind head on master.

Files	Patch %	Lines
frontend/app-development/layout/PageHeader.tsx	50.00%	2 Missing ⚠️
...rc/components/AppBarConfig/AppPreviewBarConfig.tsx	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #11883      +/-   ##
==========================================
+ Coverage   86.35%   86.37%   +0.01%     
==========================================
  Files         903      904       +1     
  Lines       12947    12957      +10     
  Branches     1616     1620       +4     
==========================================
+ Hits        11181    11191      +10     
  Misses       1534     1534              
  Partials      232      232              

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[framitdavid]

Great work!! 👏 I have a few suggestions. 😊