Merge pull request #248556 from ambroisie/meta-main-program

{rofi-bluetooth,i3lock}: add meta.mainProgram

pkgs/applications/misc/rofi-bluetooth/default.nix

···
     homepage = "https://github.com/nickclyde/rofi-bluetooth";
     license = licenses.gpl3Only;
     maintainers = with maintainers; [ MoritzBoehme ];
+    mainProgram = "rofi-bluetooth";
     platforms = platforms.linux;
   };
 })

pkgs/applications/window-managers/i3/lock.nix

···
     '';
     homepage = "https://i3wm.org/i3lock/";
     maintainers = with maintainers; [ malyn domenkozar ];
+    mainProgram = "i3lock";
     license = licenses.bsd3;
     platforms = platforms.all;
   };