update config for git-conflict.nvim (#401)

lua/config/git-conflict.lua

@@ -0,0 +1,12 @@
+require("git-conflict").setup {}
+
+vim.api.nvim_create_autocmd("User", {
+  pattern = "GitConflictResolved",
+  callback = function()
+    -- clear qf list
+    vim.fn.setqflist({}, "r")
+
+    -- reopen it?
+    vim.cmd([[GitConflictListQf]])
+  end,
+})