Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- `.env.production.sample`:
  Upstream changed it completely.
  Changed ours to merge upstream's new structure, but
  keeping most of the information.

Gemfile.lock

@@ -165,6 +165,7 @@ GEM
     cocaine (0.5.8)
       climate_control (>= 0.0.3, < 1.0)
     coderay (1.1.3)
+    color_diff (0.1)
     concurrent-ruby (1.1.6)
     connection_pool (2.2.3)
     crack (0.4.3)
@@ -690,6 +691,7 @@ DEPENDENCIES
   chewy (~> 5.1)
   cld3 (~> 3.3.0)
   climate_control (~> 0.2)
+  color_diff (~> 0.1)
   concurrent-ruby
   connection_pool
   devise (~> 4.7)