Reduce refresh time on bug pages to 3 hours

Currently, the polling/refresh times for polling open bugs on the component "Reporting Bugs" pages(e.g. https://docs.xfce.org/xfce/xfwm4/bugs) is set for 1 day.

TODO: Reduce the polling to 3 hours to keep the pages updated more frequently.

Current setting:

{{rss>https://gitlab.xfce.org/xfce/xfwm4/-/issues.atom?state=opened 20 1d date}}

Edit all component bug pages and change to:

{{rss>https://gitlab.xfce.org/xfce/xfwm4/-/issues.atom?state=opened 20 3h date}}

If this is deemed to aggressive, we can dial the setting back to 6 hours.