Merge branch 'feature/configdb-mix-tasks' into 'develop'

Add mix tasks to give additional ConfigDB recovery and debugging options

See merge request pleroma/pleroma!3174

diff --combined CHANGELOG.md
index 606f6e1db7c98777c3679543a1a3cbff31262406,7fe68f4b9f0c8703e11ef556b257145a7c3e04c5..72dfbedd0faca9c4ce3c887a14cce8b604f36099
--- 1/CHANGELOG.md
--- 2/CHANGELOG.md
+++ b/CHANGELOG.md
@@@ -11,7 -11,6 +11,7 @@@ The format is based on [Keep a Changelo
  - Polls now always return a `voters_count`, even if they are single-choice.
  - Admin Emails: The ap id is used as the user link in emails now.
  - Search: When using Postgres 11+, Pleroma will use the `websearch_to_tsvector` function to parse search queries.
 +- Emoji: Support the full Unicode 13.1 set of Emoji for reactions, plus regional indicators.
  
  ### Added
  
@@@ -24,6 -23,7 +24,7 @@@
  - Ability to view remote timelines, with ex. `/api/v1/timelines/public?instance=lain.com` and streams `public:remote` and `public:remote:media`.
  - The site title is now injected as a `title` tag like preloads or metadata.
  - Password reset tokens now are not accepted after a certain age.
+ - Mix tasks to help with displaying and removing ConfigDB entries. See `mix pleroma.config`
  
  <details>
    <summary>API Changes</summary>