Merge pull request #824 from OpenTechFund/feature/790-submissions-switcher

...ech/apply/funds/templates/funds/submissions_by_round.html

opentech/static_src/src/app/src/App.js

opentech/static_src/src/app/src/App.scss

opentech/static_src/src/app/src/components/Switcher/index.js

...ch/static_src/src/app/src/components/Switcher/styles.scss

opentech/static_src/src/app/src/index.js

opentech/static_src/src/app/src/main.scss

opentech/static_src/src/app/webpack.base.config.js

opentech/static_src/src/images/icon-array.svg

opentech/static_src/src/images/icon-grid.svg

package-lock.json

package.json