fix: updated parseSettingsString in initialization module#52

jaissica12 merged 3 commits intodevelopmentmparticle-integrations/mparticle-javascript-integration-doubleclick:developmentfrom

fix/SDKE-249-update-parseSettingsString-to-handle-null-stringmparticle-integrations/mparticle-javascript-integration-doubleclick:fix/SDKE-249-update-parseSettingsString-to-handle-null-stringCopy head branch name to clipboard