v5.16.0

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #395
• Disable submit and show spinner while editing channels by @will-moore in #398
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #416
• switch to new output command by @jburel in #417
• add whitenoise as a dependency by @jburel in #397
• Update to a suitable version of the concurrent-log-handler by @chris-allan in #415

Full Changelog: v5.15.0...v5.16.0