[4.0] Capitalize "Hide all messages"

[jgerman-bot]

New language relevant PR in upstream repo: joomla/joomla-cms#34765 Here are the upstream changes:

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diff --git a/administrator/language/en-GB/com_postinstall.ini b/administrator/language/en-GB/com_postinstall.ini
index f30fc4e87d09f..b9472b3bb7ec7 100644
--- a/administrator/language/en-GB/com_postinstall.ini
+++ b/administrator/language/en-GB/com_postinstall.ini
@@ -9,7 +9,7 @@ COM_POSTINSTALL_CONFIGURATION="Post-installation Messages: Options"
 COM_POSTINSTALL_EMPTYSTATE_BUTTON_ADD="Reset Messages"
 COM_POSTINSTALL_EMPTYSTATE_CONTENT="You have read all the messages."
 COM_POSTINSTALL_EMPTYSTATE_TITLE="Post-installation and Upgrade Messages"
-COM_POSTINSTALL_HIDE_ALL_MESSAGES="Hide all messages"
+COM_POSTINSTALL_HIDE_ALL_MESSAGES="Hide all Messages"
 COM_POSTINSTALL_LBL_SINCEVERSION="Since version %s"
 COM_POSTINSTALL_MESSAGES_FOR="Showing messages for"
 COM_POSTINSTALL_MESSAGES_TITLE="Post-installation Messages for %s"

[tecpromotion]

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