convert plugin strip project root from js to ts#2762

SB-gulshans merged 4 commits into

integration/v9bugsnag/bugsnag-js:integration/v9from

gs/plat-16467-pluginSPR-JS-to-TSbugsnag/bugsnag-js:gs/plat-16467-pluginSPR-JS-to-TSCopy head branch name to clipboard