e903bbfd00
According to the google code style guide, enum names should generally be singular nouns. https://google.github.io/styleguide/jsguide.html#naming-enum-names. Change-Id: I49b3d495e61ba4c0a582e6c26accdd82e1352d1c
constants folder should contain:
- constants used across files
- messages used across files, like toasters, notifications etc
For every constant defined, please add a @desc for it, once the list grows bigger,
we should consider grouping them with sub folders / files.