Update documentation for Katello 4.18.0 (#4261)

Author: pavanshekar

guides/doc-Release_Notes/topics/katello-4.18.0.adoc

@@ -11,8 +11,13 @@ A full list of changes is available on https://projects.theforeman.org/issues?se
 * pass:[Remove settingActions from Katello] - https://projects.theforeman.org/issues/38490[#38490]
 * pass:[Remove @theforeman/vendor-dev] - https://projects.theforeman.org/issues/38431[#38431]
 
+=== API
+
+* pass:[Remove Backend System Status widget] - https://projects.theforeman.org/issues/38668[#38668]
+
 === Container
 
+* pass:[Long container push uploads result in authentication error] - https://projects.theforeman.org/issues/38649[#38649]
 * pass:[Flatpak - Install REX job run hangs for 10 minutes] - https://projects.theforeman.org/issues/38638[#38638]
 * pass:[Handle permissions correctly on flatpak UI + UX feedback] - https://projects.theforeman.org/issues/38621[#38621]
 * pass:[Remove "seeded" and "organization_id" from Flatpak remote search bar proposals] - https://projects.theforeman.org/issues/38617[#38617]
@@ -34,9 +39,12 @@ A full list of changes is available on https://projects.theforeman.org/issues?se
 
 === Content views
 
+* pass:[Error "Katello::Resources::Candlepin::Environment: 404 Not Found" When Deleting Rolling Content View] - https://projects.theforeman.org/issues/38689[#38689]
 * pass:[RPM filter rule deletes existing entries when a rule is edited] - https://projects.theforeman.org/issues/38652[#38652]
 * pass:[Few PF5 widgets have dynamic OUIA IDs on Contentview Page] - https://projects.theforeman.org/issues/38635[#38635]
+* pass:[Repo removal from a rolling CV does not trigger the Capsule sync] - https://projects.theforeman.org/issues/38561[#38561]
 * pass:[Incremental CCV updates all CV versions] - https://projects.theforeman.org/issues/38484[#38484]
+* pass:[Content view environments endpoint does not work well with FAM] - https://projects.theforeman.org/issues/38443[#38443]
 * pass:[When creating a rolling content view with repository_ids no rolling repo clones are created] - https://projects.theforeman.org/issues/38413[#38413]
 * pass:[Disallow pushing containers to rolling content views] - https://projects.theforeman.org/issues/38285[#38285]
 * pass:[Content view environments can be created without a content view version id] - https://projects.theforeman.org/issues/38270[#38270]
@@ -46,6 +54,7 @@ A full list of changes is available on https://projects.theforeman.org/issues?se
 * pass:[Web UI shows incorrect host count when applying an erratum] - https://projects.theforeman.org/issues/38550[#38550]
 * pass:['Install Selected via remote execution – customize first' installs all available errata for the host collection] - https://projects.theforeman.org/issues/38483[#38483]
 * pass:[Allow for scoped search of 'other' errata types] - https://projects.theforeman.org/issues/38135[#38135]
+* pass:[Host details content page does not display 'other' type errata] - https://projects.theforeman.org/issues/38005[#38005]
 
 === {SmartProxy} content
 
@@ -65,12 +74,23 @@ A full list of changes is available on https://projects.theforeman.org/issues?se
 * pass:[As a user I want to be able to change the location and organization of multiple hosts] - https://projects.theforeman.org/issues/38436[#38436]
 * pass:[Add bulk Repository Sets wizard to new All Hosts page] - https://projects.theforeman.org/issues/38353[#38353]
 
+=== Inter-server sync
+
+* pass:[Incremental repository export fails on syncable content unless --format syncable is passed] - https://projects.theforeman.org/issues/38637[#38637]
+
 === Localization
 
 * pass:[Drop redundant gettext_i18n_rails dependency] - https://projects.theforeman.org/issues/38430[#38430]
 
+=== Organizations and locations
+
+* pass:[Attempts to set cdn_configuration on downstream SAT organization fails due to RH Cloud controller overwrites] - https://projects.theforeman.org/issues/38723[#38723]
+
 === Repositories
 
+* pass:[Cannot mirror Flatpak into default Red Hat products — restricted to custom products only] - https://projects.theforeman.org/issues/38720[#38720]
+* pass:[Update the Recommended Repositories page to change the Red Hat Satellite Capsule and Red Hat Satellite Maintenance repositories from version 6.17 to 6.18 for RHEL 9] - https://projects.theforeman.org/issues/38717[#38717]
+* pass:[Clean duplicate erratum packages before bigint migration] - https://projects.theforeman.org/issues/38685[#38685]
 * pass:[Repo discovery Registry Search Parameter Default:* (search all) can return incomplete results] - https://projects.theforeman.org/issues/38675[#38675]
 * pass:[HTTP should be allowed on Flatpak remote creation and application name should be displayed for remote repository] - https://projects.theforeman.org/issues/38634[#38634]
 * pass:[Add flatpak remote actions to Remote details page] - https://projects.theforeman.org/issues/38596[#38596]

guides/doc-Release_Notes/topics/katello-contributors.adoc

@@ -11,6 +11,7 @@ Lucy Fu,
 Lukas Jezek,
 Maria,
 Nadja Heitmann,
+Partha Aji,
 Pavan Soma Shekar,
 Quinn James,
 Quirin Pamp,