move mixpanel init under libs
move mixpanel init under libs

Impactstory/total-impact-webapp,Impactstory/total-impact-webapp,Impactstory/total-impact-webapp,total-impact/total-impact-webapp,total-impact/total-impact-webapp,total-impact/total-impact-webapp,Impactstory/total-impact-webapp,total-impact/total-impact-webapp