Going about this backwards! Furniture first! Paint colors are the last item to be chosen for a decorating project. Why? Because they need to work well with the fabric and textiles (upholstery, rugs, pillows, curtains) in a room. Those things are unable to be adjusted, but paint can be custom blended, even changes over the years, to suit them. As for the furniture, most living rooms do well with a 3-seat sofa and two upholstered armchairs as base pieces. Avoid matched sets of seating or casegoods; you need a more curated look if you want the home to have a stylish, hand-selected feeling. The current set up looks to have the dining table encroaching on the TV/FP area. Perhaps your friend can do with a smaller table there. Things to avoid: loveseats, artificial plants/flowers, mirrors that don't reflect/double something worth seeing twice, too much clutter. Hopefully, your friend has been ruthless in clearing out more stuff than she should move into this home.

In this situation,I would ....probably look at Farrow & Ball shades (or BM Affinity line) because the selection is so highly edited. And,in the case of F&B, the paint shades have a luminous depth that is more visually interesting. Do these sorts of rooms speak to her aesthetic? Toronto Transitional! https://www.houzz.com/magazine/a-new-transitional-style-for-collectors-of-antiques-and-art-stsetivw-vs~120491277

Prime and paint it a soft neutral white. Easier to change later.