Most of my indoor tropicals slow down in growth during winter dropping leaves and retain only what it needs to carry on through the colder months, then as Spring rolls in, slowly the growth vigor returns. I usually do my repot in Spring too, but since you have done it already, just let the plant rest and acclimate once more. Sometimes plants hate their roots being disturbed, so it takes awhile to return. I would have avoided giving the plant fertilizer since it is in some kind of stress, but you have already given it. So just have to wait patiently and see if it will try to make new growth soon.
When you see new growth, then you can decide if you wish to trim back the leggy branches or trim back to hard wood, so it can grow new ones in the manner you prefer. But wait for Spring, like in late March to early April to do it.
Good luck on your plant.
