feat(nvim): Make lsp signature toggable

.config/nvim/lua/plugins/plugins.lua

@@ -170,8 +170,9 @@ return require("packer").startup({
 			"ray-x/lsp_signature.nvim",
 			config = function()
 				require("lsp_signature").setup({
-                    floating_window = false,
-                    hint_prefix = ""
+                    hint_prefix = "",
+                    hint_enable = false,
+                    toggle_key = "<M-x>"
                 })
 			end,
 		})