Merge pull request desktop#4595 from desktop/desktop-1-5-beta

Updates Desktop 1.1.2-beta5 change log

Update changelog with PRs landed since draft changelog

Merge pull request desktop#4468 from desktop/cut-another-beta

publish another beta release

Merge pull request desktop#4417 from desktop/new-beta-release-notes

draft of release notes for next beta

bump for 1.1.2-beta1

add comma to JSON

this is why we can't have nice releases

Co-Authored-By: Josh Abernathy <[email protected]>

bump for new beta

bump to beta3 to ensure all changes are on beta channel

Update changelog.json

bump beta channel to be ahead of 1.1.0