The comments explaining date formatting to translators have a couple of typos related to the day name variables (%A and %a).
This commit fixes them.
Closes#1377
- Reorder to be consistent with other apps
- Remove `<help>` link to Discourse as that tag is intended for
persistent docs rather than a place to ask for help
- Remove deprecated `.desktop` suffix from `<id>`
- Add brand colors
- Update HW requirements to be more in accordance with AppStream
recommendations