Reorganize app

[jbsv]

Clean up organisation of the frontend sources, mainly the principale pages, along with naming and routes.

[coveralls]

Pull Request Test Coverage Report for Build 1867398416

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 55.332%

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Totals
Change from base Build 1864170718:	0.0%
Covered Lines:	2838
Relevant Lines:	5129

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💛 - Coveralls

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
18 Code Smells

0.0% Coverage
1.9% Duplication

[nkcr]

Merging even though we have problems with the frontend/backend. Will create a subsequent PR to fix that.