treat shell code blocks as bash in markdown

Signed-off-by: abzcoding <[email protected]>

Author: abzcoding

after/queries/markdown/injections.scm

@@ -0,0 +1,8 @@
+;; extends
+
+(fenced_code_block
+  (info_string
+    (language) @_lang)
+  (#match? @_lang "shell")
+  (code_fence_content) @injection.content
+  (#set! injection.language "bash"))

lua/user/markdown_syn.lua

@@ -171,8 +171,6 @@ M.config = function()
   end
   vim.g.editorconfig = true
 
-  vim.g.markdown_fenced_languages = { "shell=bash" }
-
   if vim.g.neovide then
     vim.g.neovide_cursor_animation_length = 0.01
     vim.g.neovide_cursor_trail_length = 0.05