* refactor(panzoom): create vanilla helper * feat(svelte): add interaction example * refactor(panzoom): cleanup * Update function-runner.ts * refactor(panzoom): cleanup * refactor(panzoom): rename functions * feat(utils): add vanilla drag helper (#3107) * feat(utils): add vanilla drag helper * refactor(drag): cleanup * refactor(drag): cleanup * chore(packages): cleanup * refactor(panzoom): cleanup and simplify