Hi,

Its based on the sequence set to the menus, you can set it from the code or you can adjust it from the user interface, to adjust it from user interface, activate the developer mode and navigate to settings -> technical -> user interface -> menu items, search and open the menu you want to change and adjust its sequence.

Lower the sequence the menu will be shown first. Here first of all you have to search and open the discuss menu and see what is the sequence value given for it. Then assign a lesser sequence value to the dashboard menu.

Here i have changed the sequence value of the dashboard menu to 0 which is less than Discuss menu which is 1,

Now you can see,

Thanks