Update tables in CLI options doc

What does this MR do?

After reviewing a separate MR (!1591 (merged)), I noticed that multiple rows of the table at https://docs.gitlab.com/charts/installation/command-line-options.html#advanced-gitlab-configuration are broken, rendering as empty lines, and some rows were missing the end |s.

I checked all the tables and realigned them, fixed the | issue, and did some light cleanup as flagged by Vale (spelling, acronyms, etc).

Related issues

Author's checklist (required)

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