v1.5-beta2: web login problems after update

[interduo]

Reproduction:

• login to WEB,
• do upgrade via SSH,
• completly remove lqos, install from the scrach on the same VM,
• try to login via WEB

On internet browser:

In lqosd logs:

Aug 06 08:42:17 libreqos-beta lqosd[109759]: thread 'tokio-runtime-worker' panicked at lqosd/src/node_manager/auth.rs:41:63:
Aug 06 08:42:17 libreqos-beta lqosd[109759]: called `Result::unwrap()` on an `Err` value: InvalidToken
Aug 06 08:42:22 libreqos-beta lqosd[109759]: [2024-08-06T06:42:22Z WARN  lqos_config::authentication] Token 05ca9eac-313b-424d-8300-1976486141a4 not found, invalid data access >
Aug 06 08:42:22 libreqos-beta lqosd[109759]: thread 'tokio-runtime-worker' panicked at lqosd/src/node_manager/auth.rs:41:63:
Aug 06 08:42:22 libreqos-beta lqosd[109759]: called `Result::unwrap()` on an `Err` value: InvalidToken

Suggested solution: If no session token is found we should redirect user to login page instead showing an empty response.

Workaround for that: use incognito mode or clean web files in internet browser (chrome/firefox).