Function extendRangeToIntersectingRanges

extendRangeToIntersectingRanges(range, rangesLookup): CellRangeCoords
Get maximum bound of an range given other ranges. Will return the union. (useful for to merged cell selection)
Parameters
- range: CellRangeCoords
- rangesLookup: CellRangeLookup | CellRangeCoords[]
Returns CellRangeCoords