Fix: edge_feat_embedding crashes on empty edge_index when normalized_features=True*#50

atharrva01 wants to merge 2 commits intoDevoLearn:mainDevoLearn/DevoGraph:mainfrom

atharrva01:fix/edge-feat-empty-edge-indexatharrva01/DevoGraph:fix/edge-feat-empty-edge-indexCopy head branch name to clipboard