Right click on the empty space and ripple delete.
not the most obvious sounding solution, sounds more like a deletion command ! and as for the word Ripple ? ! ...
r/click 'refill from right' seems more user friendly but it does the job and many thanks to you.
I shall remember it for the odd name.
The logic may be that if you delete the empty space in such a way that it ripples through the rest of your timeline, that some Einstein called it Ripple Delete. Anyway, it does what you wanted.
Since the earliest days of NLE and EDL..the word "ripple" has been used to shuffle the clips or ED list into line.
Considering the phrase "ripple effect", it is a very appropriate term to describe what happens in these instances.