chore: Release

Updates MSRV in changelog and various dependencies.

Updates `rand` dependency

Removes `float_next_after` dependency - it became obsolete by additions to `std`

Updates CHANGELOG.md

Updates SVGs to be in aligned with current code changes.

Improves documentation

Fix splitting of constrained edges

Fix comments in PR

Fix refinement hang for certain geometry

Update hashbrown to 0.16.1 (#141)

Derive `Debug` for `ConstrainedDelaunayTriangulation` (#140)

chore: Release

Bulk load cdt stable improvement (#138)

Implement CDT bulk load method that don't panic if constraints intersect (#137)