[REFACTOR] react-router-dom v6 migration

[omjinLTS]

목적

Upgrade react-router-dom v5 to v6
Performance, Simplified code, Enable features based on hook

작업 상세 내용

• install react-router-dom-v5-compat and setup CompatRouter
• For all routes in the <Switch>
  • Change a <Route> inside of <Switch> to a <CompatRoute>
  • Update all APIs inside this route element tree to v6 APIs one at a time ex) useHistory, ...
• Convert the <Switch> to a <Routes> for every <Switch>
• Update <Links>
• + Split Routers into files, move to Routes folder.

유의사항

• migration guide using react-router-dom-v5-compat
• react-router-dom upgrading from v5 doc