Move the calc mode into the combi prompt so math results show inline
alongside apps, leaving emoji as the one tab-away mode. Rebind the
power menu from Super+Escape to Super+Shift+X, pairing it with lock on
Super+X. Shorten the layer fade-in so the launcher appears quicker.
Add a rofi module to the desktop group, enabled by the aggregator.
It combines drun, run and window into one combi prompt, with calc and
emoji as further modes, bound on Super+R. A session menu built on the
same themed rofi is bound on Super+Escape, and every rofi -dmenu call
inherits the Stylix theme, so later utility menus reuse it for free.
