Implement cypress session

[mshima]

Fixes #16545.

• No page visits is done at login process.
• Removes forced clicks.
• Reduces differences between authentication implementations.
• Reduces differences between client framework implementations.
• Big gain in oauth2 authentication performance.
• Small loss in jwt/session authentication performance due to each test cleanup overhead.

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[mshima]

Thanks @qmonmert

[qmonmert]

@mshima you're welcome!