* feat(styles): create stylesheets for react and svelte based on one source
* refactor(styling): cleanup
* refactor(postcss): share a config
* refactor(postcss): replace env hack with env file
* feat(stores): use vanilla store utils
* fix(store-utils): keep dimensions if possible
* feat(utils): add nodeDimension and panBy utils
* fix(svelte): use correct updateDim func
* refactor(react): cleanup store
* chore(tests): use new imports