GH-7066 (code background redundancy)

[chessmadridista]

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Summary

Code redundancy issues have been resolved for prepare-mattermost-database.rst. Issues for other files will be submitted in separate PRs. Once all the files have been modified, the main issue will be marked as completed and closed.

The redundant background was removed by removing an extra indentation in the code blocks. The redundant background can be removed in other files following the same approach.

Ticket Link

#7066

Note: There are multiple files that need to be taken care of in this issue. Please do not mark this issue as closed.