add cmpdoc hl group for default cmp style

also remove un-needed treesitter hl group

lua/base46/integrations/cmp.lua

@@ -4,6 +4,7 @@ local colors = require("base46").get_theme_tb "base_30"
 local highlights = {
   CmpItemAbbr = { fg = colors.white },
   CmpItemAbbrMatch = { fg = colors.blue, bold = true },
+  CmpDoc = { bg = colors.darker_black },
   CmpDocBorder = { fg = colors.darker_black, bg = colors.darker_black },
   CmpPmenu = { bg = colors.black },
   CmpSel = { link = "PmenuSel", bold = true },

lua/base46/integrations/treesitter.lua

@@ -191,10 +191,10 @@ return {
     underline = true,
   },
 
-  TSDefinitionUsage = {
-    sp = theme.base04,
-    underline = true,
-  },
+  -- TSDefinitionUsage = {
+  --   sp = theme.base04,
+  --   underline = true,
+  -- },
 
   ["@scope"] = {
     bold = true,