Merge branch 'master' of https://github.com/sampl/firefly

note on stripe subscription

Merge pull request #171 from sampl/dependabot/npm_and_yarn/scripts/lodash-4.17.15

Merge pull request #170 from sampl/dependabot/npm_and_yarn/scripts/mixin-deep-1.3.2

Merge pull request #172 from sampl/dependabot/npm_and_yarn/scripts/axios-0.18.1

Merge pull request #173 from sampl/dependabot/npm_and_yarn/scripts/protobufjs-5.0.3

Bump protobufjs from 5.0.2 to 5.0.3 in /scripts

Bump axios from 0.18.0 to 0.18.1 in /scripts

Bump lodash from 4.17.5 to 4.17.15 in /scripts

Bump mixin-deep from 1.3.1 to 1.3.2 in /scripts

bug fix: don't error if user hasn't been created

remove outdated firestore setting

add supported browsers

update react scripts and npm audit fix

update firebase libraries and npm audit fix