Grafana 9.3 feature: Grafana OAuth token improvements

Grafana 9.3 introduces enhanced OAuth token management to improve security and user experience by ensuring users are continuously authorized through their OAuth identity provider. This update, available in Grafana OSS, Cloud, and Enterprise, verifies that a user's access token is valid on each request, utilizing a refresh token to obtain a new access token when necessary, thereby avoiding interruptions in user sessions. This feature requires configuration of the identity provider to use refresh tokens, and it can be enabled with the accessTokenExpirationCheck feature toggle for Grafana setups. The update supports various OAuth providers like Azure AD, Okta, and Google, and aims to maintain secure and seamless access to Grafana dashboards. Additionally, Grafana 9.3 includes new navigation and localization features, with further details available in the release changelog and documentation. Users are encouraged to explore these changes through community forums and support resources.