use mason for dependency management

nvim/lua/darcula/keymaps.lua

@@ -719,10 +719,8 @@ if not NV_DARCULA_ENABLE_COC then
   end
 end
 
-if not NV_DARCULA_ENABLE_COC then
-  function M.mason()
-    km.map(km.leader "in", ":Mason<CR>", {remap = true, silent = true})
-  end
+function M.mason()
+  km.map(km.leader "in", ":Mason<CR>", {remap = true, silent = true})
 end
 
 function M.navigation()
@@ -1453,9 +1451,7 @@ end
   if not NV_DARCULA_ENABLE_COC then
     M.lsp()
   end
-  if not NV_DARCULA_ENABLE_COC then
-    M.mason()
-  end
+  M.mason()
   M.navigation()
   M.nvim_dap()
   M.nvim_haven()