Quick Access to "Max Speed" Adjustment Directly on the Route Planning Screen

There is already a feature request to automatically calculate the optimal max speed for the fastest travel time (which is a great idea!). However, as a complementary feature, it would greatly improve the UX if users could directly change the maximum speed on the main route planning screen without having to open the vehicle settings menu.

Why this is useful:

When planning a specific trip, users often want to play around with different speeds (e.g., "What if I drive 110 km/h instead of 130 km/h on this specific route?") to see how it affects charging stops, consumption, and total arrival time.

Currently, you have to leave the route screen, go deep into the settings, change the speed, go back, and recalculate.

Proposed Solution:

Add a quick-adjust element (like a small slider, a dropdown, or a simple +/- field) directly on the route overview/planning screen next to the route summary. This would allow for rapid on-the-go adjustments and instant recalculation for the current trip.