DOCSP-45777 backports DOCSP-44307 Remove OM version from the login page (#480) (#575)

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- [DOCSP-45777](https://jira.mongodb.org/browse/DOCSP-45777) 
-
[STAGING](https://deploy-preview-575--10gen-docs-ops-manager.netlify.app/reference/configuration/)

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Author: kanchana-mongodb

source/includes/setting-fileConf-mms.security.show.om.version.rst

@@ -0,0 +1,9 @@
+.. setting:: mms.security.show.om.version
+
+   *Type*: boolean
+
+   *Default*: True
+   
+   When ``false``, |mms| doesn't display the version number in the login
+   page.
+   

source/reference/configuration.txt

@@ -269,6 +269,7 @@ Security
 
 .. include:: /includes/setting-fileConf-mms.security.disableBrowserCaching.rst
 .. include:: /includes/setting-fileConf-mms.security.hstsMaxAgeSeconds.rst
+.. include:: //includes/setting-fileConf-mms.security.show.om.version.rst
 
 Non-Uniform Memory Access (NUMA)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

source/release-notes/changelogs/ops-manager/changelog-onprem-v7.0.rst

@@ -10,7 +10,7 @@
 - Supports configuring separate SAML signature validation for responses and assertions so that only one is 
   required through the :setting:`mms.saml.signedAssertions` and :setting:`mms.saml.signedMessages` settings.
 - Supports ability to set a custom idle session timeout using new application settings, :guilabel:`Idle Session Timeout Mode` and :guilabel:`Idle Session Timeout Max Minutes`.
-- Supports taking :ref:`on-demand snapshots <on-demand-snapshots>` in addition to scheduled snapshots.
+- Supports taking on-demand snapshots in addition to scheduled snapshots.
 - Removes the |onprem| version number from the login page if you set :setting:`mms.security.show.om.version` to false.
 - Updates the {+mdbagent+} to :ref:`107.0.12.8669-1 <mongodb-107.0.12.8669-1>`.
 - Adds support for |bic-full| 2.14.17.