Fix width of input rows to stretch for all inputs; add rounded corner to extra row for statement (#349)
Fix width of input rows to stretch for all inputs; add rounded corner to extra row for statement (#349)

* Update right edge for all inputs to keep sizes even

* Rounded corner on small row at bottom of last statement input

LLK/scratch-blocks,sclements/scratch-blocks,griffpatch/scratch-blocks,sclements/scratch-blocks,gengshenghong/scratch-blocks,gengshenghong/scratch-blocks,sclements/scratch-blocks,griffpatch/scratch-blocks,LLK/scratch-blocks,LLK/scratch-blocks,gengshenghong/scratch-blocks,griffpatch/scratch-blocks,griffpatch/scratch-blocks,sclements/scratch-blocks,griffpatch/scratch-blocks,gengshenghong/scratch-blocks,sclements/scratch-blocks,gengshenghong/scratch-blocks,LLK/scratch-blocks,LLK/scratch-blocks