Fix builting function color

Author: gepbird

Diff for: darkplus.toml

@@ -187,7 +187,7 @@ TSKeywordReturn = 'link:Include'
 TSKeywordOperator = 'link:Include'
 TSKeywordFunction = 'link:Keyword'
 TSFunction = 'link:Function'
-TSFuncBuiltin = 'link:Type'
+TSFuncBuiltin = 'link:Function'
 TSMethod = 'link:Function'
 TSFuncMacro = 'link:Function'
 TSConditional = 'link:Conditional'

Diff for: lua/darkplus/theme.lua

@@ -124,7 +124,7 @@ theme.set_highlights = function()
   hl(0, "@number", { link = 'Number' })
   hl(0, "@float", { link = 'Float' })
   hl(0, "@function", { link = 'Function' })
-  hl(0, "@function.builtin", { link = 'Type' })
+  hl(0, "@function.builtin", { link = 'Function' })
   hl(0, "@function.call", { link = 'Function' })
   hl(0, "@function.macro", { link = 'Macro' })
   hl(0, "@method", { link = 'Function' })