Way, way faster!

#### Improvements 🧹

- Edge routing is up to 31% faster
- Improves layout of clusters
- Node placement is up to 2x faster
- Up to 41% less memory usage
- Avoids clustering nodes when their sizes are disproportionately different
- Prevent image labels from being placed over the image in some cases

#### Bugfixes ⛑️

- Fixes a rare bug where container children place outside of container
- Fixes self-loop sizing on containers
- Fixes node drift in certain cases
- Fixes an issue where unlabeled connections could completely overlap each other
- Fixes a bug with node alignments