Doc fix: Access control page update

[flyrain]

Is your feature request related to a problem? Please describe.

Inspired by this slack thread: https://apache-polaris.slack.com/archives/C084QSKD6S2/p1755480569471149. The mapping between principals and principal roles should be many to many. https://polaris.apache.org/releases/1.0.0/access-control/ says something else. We should fix it. cc @eric-maynard @MonkeyCanCode

[MonkeyCanCode]

K. I can fix this tonight.

Is your feature request related to a problem? Please describe.

Inspired by this slack thread: https://apache-polaris.slack.com/archives/C084QSKD6S2/p1755480569471149. The mapping between principals and principal roles should be many to many. https://polaris.apache.org/releases/1.0.0/access-control/ says something else. We should fix it. cc @eric-maynard @MonkeyCanCode

[MonkeyCanCode]

K. I can fix this tonight.

Is your feature request related to a problem? Please describe.

Inspired by this slack thread: https://apache-polaris.slack.com/archives/C084QSKD6S2/p1755480569471149. The mapping between principals and principal roles should be many to many. https://polaris.apache.org/releases/1.0.0/access-control/ says something else. We should fix it. cc @eric-maynard @MonkeyCanCode

@flyrain please review #2424