proposal sent to accounting and isa

See also tpo/web/civicrm/-/issues/73

See tpo/tpa/team#40929

See prometheus-alerts!21.

I used the following Postgresql query on the RT database to estimate the
number of outgoing mails per month from the service over the last year:

    SELECT COUNT(*), EXTRACT(YEAR FROM created) AS year, EXTRACT(MONTH
    FROM created) AS month FROM transactions WHERE objecttype =
    'RT::Ticket' AND type = 'Correspond' and CREATED >= (current_date +
    '-1 year'::interval) group by month, year order by year, month;

I reviewed the entire page to make sure it flows correctly. I mostly
worked on splitting up the per-service procedures in different
sections instead of one long list, but also reworked the headings to
have better categories that will look better in the TOC.

I also warn about individual reboots because the more common use case
is fleet, or at least cluster-wide reboots.

See: team#33406

See: team#32920

This merges a bunch of different procedures that had accumulated all
over the place.

It also adds new procedures that were flying around as copy-paste
ideas in IRC channels. It should now be possible to copy-paste from
the wiki instead, which is a slight improvement.

See: team#32920

The formatting for these fields matter, especially categories as it
seems it will not render the post unless there's a newline under the
field name.

Encountered in team#40955 and team#40939.