- set alphaMode and doubleSided in glTF export
- fix flipped cylinder caps

* add modified amino acid "hydroxyproline" (HYP) present in collagen molecules to the list of amino acids

* update changelog

- lines/points as triangles
- include hidden
- primitives qaulity

* struct-conn extension toy example

* Minor changes (David's feedback)

* Showing struct_conn visuals

* Removed Interactions visual

* Caching struct_conns

* Removed testing buttons in index.html, updated CHANGELOG

* Addressed most of PR feedback

* Fixed structure node selection, docs

* Addressed feedback round 2

- Added changelog entry

* feat: partial charges extension

* chore: pullrequest actions

* feat: example

* fix: review changes

* fix: updated example structure categories

* fix(changelog): shorter description

* fix: code review changes

* fix: cosmetic changes

- Supporting meshes and lines
- Remove non-stub cap from last (if odd) dash