fix (hopefully): piaying single point lines

app/www/annotate.js

@@ -936,7 +936,7 @@ class Annotator extends EventTarget {
             // setTimeout(() => this.playStroke(next_path, next_point), dt);
         } else if (this.strokes.length > path_i + 1) {
             next_path = path_i + 1;
-            next_point = 1;
+            next_point = 0;
             // use starttime instead of diff, to prevent floating
         } else {
             return [null, null];