[Feature] Better address handling in the app

[hermannleboss]

Description

When you want to switch network in the app, you need to change your contract address. This is generating many rewrite of .env files.

The better way is to have a json folder that store the contract address and use it in the app.

Acceptance Criteria

• [x] Create a script to copy deoloyed addres json file il the contract folder and put it in the app folder
• [x] Update the app to use the json file for contract address
• [x] - Should work on any network
• [ ] Missing a network A deployed addres should not impact when the user use the network B
• [ ] With a scrip the user can copy the address from contract folder to the app folder
• [ ] The app should notify in a log missing address in the address file. And log the consequence of it.