Add :lang yaml module

Removes yaml-mode from :lang data and adds LSP support (#2502).

Closes #2502

Co-authored-by: Seong Yong-ju <sei40kr@gmail.com>

modules/lang/data/config.el

@@ -37,9 +37,6 @@
 (after! jsonnet-mode
   (set-electric! 'jsonnet-mode :chars '(?\n ?: ?{ ?})))
 
-(after! yaml-mode
-  (setq-hook! 'yaml-mode-hook tab-width yaml-indent-offset))
-
 
 ;;
 ;;; Frameworks

modules/lang/data/packages.el

@@ -3,7 +3,6 @@
 
 (package! graphql-mode :pin "7c37aee28b")
 (package! jsonnet-mode :pin "d8b486c837")
-(package! yaml-mode :pin "cecf4b106b")
 (package! csv-mode :pin "635337407c")
 (package! dhall-mode :pin "ef4d33debe")
 (package! protobuf-mode