feat(dashboard): remove unnecessary brackets from keys (#1791)

lua/lazyvim/plugins/ui.lua

@@ -391,6 +391,7 @@ return {
 
       for _, button in ipairs(opts.config.center) do
         button.desc = button.desc .. string.rep(" ", 43 - #button.desc)
+        button.key_format = " %s"
       end
 
       -- close Lazy and re-open when the dashboard is ready