Upgrade to react-router v8

[MikeEdgar]

We should upgrade to the latest react-router v8 release. This can't be done using dependabot because the package name is changed (react-router vs react-router-dom [1]). Staying currently will help to avoid security issues and other bugs.

[1] https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v800

[dyson-025]

Hi! I'd like to work on this issue if it's available. I'll handle the migration to React Router v8, update the package references, address any required API changes, and ensure the application and tests continue to work.

[tomncooper]

@dyson-025 Welcome to the project! I'll assign this to you if you want to give it a go. Just let us know if you don't think you will get it done before the 0.14 release.

[dyson-025]

i will complete it before the 0.14 release, dont worry you can trust me on this