This is for Mac, but hopefully answer is the same on all OS types. Is there a way to customize keyboard shortcuts used within the Steam app itself?

The one that bugs me the most is Cmd+Arrow which activates forward/back navigation but I use it out of habit when writing messages so I end up leaving the page where I am typing my message. Thankfully Steam is often able to save the text I have written, but that doesn't happen all the time.

Any way I can disable or change the shortcut for this?