silence logging of 404s on app resources

at least temporarily
Merge pull request #3951 from dimagi/silence-unknown-resource-errors

silence logging of 404s on app resources
refactor AdminReportsTab
add Real Project Spaces report to the navigation
show some data in a chart
add GlobalAdminReports base class
move template context to base class
add Real Project Spaces - Plans
get domains for table from property
implemented Total Project Spaces chart
add self-started project spaces
update staging.yaml

[ci skip]
Merge remote-tracking branch 'origin/subtree-merge-forms-cases' into autostaging
Merge remote-tracking branch 'origin/time-ago-deployed' into autostaging
Merge remote-tracking branch 'origin/hq-dropdown' into autostaging
Merge remote-tracking branch 'origin/refactor-domain-copy2' into autostaging
Merge branch 'logos' into autostaging
Merge remote-tracking branch 'origin/switch_to_site_code' into autostaging
Merge remote-tracking branch 'origin/vellum-requirejs' into autostaging
Merge remote-tracking branch 'origin/schedule' into autostaging