Draft: Draft: Update the codeowners for TW team to reduce number of approvals in MRs

What does this MR do and why?

The current CODEOWNERS for docs has a minor issue where we get multiple approvals listed for docs, but I think we can improve this by moving one of the rules into a different section.

The /doc/ @gl-docsteam rule is currently in the ^[Documentation Directories] section, while the files themselves are listed in the ^[Documentation Pages]. If we move them together, the /doc/ rule won't be used if a DRI is found for a specific file later in the section, eliminating one of the superfluous rules in the approvals.

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