62 orders tab

[JulesGresset]

Describe your changes

The orders view is now working and current orders can be selected and edited.
Known issues :

• Once an order is edited and send back, it creates a new order instead of modifying the existing one (separate feature)
• If an order is selected and we selected an order with the same number, nothing happen (should not exist outside of development period)
• Passed orders submenu doesn't do anything (needs to be handled by the back-end and required the paiement feature to be implemented, separate features)

Issue ticket number and link

Closes #62

Checklist before requesting a review

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have performed a self-review of my code
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Documentation has been updated as required
  If a single item in this checklist is not checked, the pull request cannot be accepted