Use the same lib/shared/comm-icon-config.json (exported from IcoMoon) as we're using for CommIcon on native. This ensures that CommIcon on native and web are synced up. Before the icons from IcoMoon were exported separately on native and web which led to some inconsistency.

Heavily inspired by the SWMansionIcon.react.js component in the same directory.

Was able to consume CommIcon component as expected. Tested implicitly by subsequent diffs that replace some usages of SWMansionIcon with CommIcon.