patch 9.1.0421: filetype: hyprlang files are not recognized

Problem:  filetype: hyprlang files are not recognized
Solution: recognize 'hypr{land,paper,idle,lock}.conf' files
          as 'hyprlang' filetype, add hyprlang ftplugin
          (Riley Bruins)

closes: #14803

Signed-off-by: Riley Bruins <ribru17@hotmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/.github/MAINTAINERS b/.github/MAINTAINERS
index 1fcebe6..d905618 100644
--- a/.github/MAINTAINERS
+++ b/.github/MAINTAINERS
@@ -155,6 +155,7 @@
 runtime/ftplugin/hgcommit.vim		@k-takata
 runtime/ftplugin/hog.vim		@wtfbbqhax
 runtime/ftplugin/html.vim		@dkearns
+runtime/ftplugin/hyprlang.vim		@ribru17
 runtime/ftplugin/i3config.vim		@hiqua
 runtime/ftplugin/icon.vim		@dkearns
 runtime/ftplugin/indent.vim		@dkearns