Partially revert "Elixir 1.19: Refactor Logger configuration to what Elixir 1.15+ expects"

This partially reverts commit fc35204cc1.

config/config.exs

@@ -132,12 +132,11 @@ config :pleroma, Pleroma.Web.Endpoint,
     "SameSite=Lax"
   ]
 
-# config :logger, :console has been changed in 1.15+ and split into
-# :default_handler and :default_formatter. It started emitting warnings in 1.19.
-# See https://hexdocs.pm/logger/1.19.0/Logger.html#module-backends-and-backwards-compatibility
-config :logger, :default_handler, level: :debug
+# Configures Elixir's Logger
+config :logger, backends: [:console]
 
-config :logger, :default_formatter,
+config :logger, :console,
+  level: :debug,
   format: "\n$time $metadata[$level] $message\n",
   metadata: [:actor, :path, :type, :user]
 

config/dev.exs

@@ -36,7 +36,7 @@ config :pleroma, Pleroma.Emails.Mailer, adapter: Swoosh.Adapters.Local
 # different ports.
 
 # Do not include timestamps in development logs
-config :logger, :default_formatter, format: "$metadata[$level] $message\n"
+config :logger, Logger.Backends.Console, format: "$metadata[$level] $message\n"
 
 # Set a higher stacktrace during development. Avoid configuring such
 # in production as building large stacktraces may be expensive.

config/prod.exs

@@ -20,7 +20,8 @@ config :pleroma, Pleroma.Web.Endpoint,
 config :phoenix, serve_endpoints: true
 
 # Do not print debug messages in production
-config :logger, :default_handler, level: :info
+config :logger, Logger.Backends.Console, level: :info
+config :logger, :console, level: :info
 config :logger, :ex_syslogger, level: :info
 
 # ## SSL Support

config/test.exs

@@ -15,13 +15,9 @@ config :pleroma, Pleroma.Captcha,
   method: Pleroma.Captcha.Mock
 
 # Print only warnings and errors during test
-config :logger, :default_handler, level: :warning
-
-config :logger, :default_formatter,
-  format: "\n[$level] $message\n",
-  colors: [
-    enabled: false
-  ]
+config :logger, :console,
+  level: :warning,
+  format: "\n[$level] $message\n"
 
 config :pleroma, :auth, oauth_consumer_strategies: []
 

docs/configuration/cheatsheet.md

@@ -886,7 +886,7 @@ See: [logger’s documentation](https://hexdocs.pm/logger/Logger.html) and [ex_s
 An example of logging info to local syslog, but debug to console:
 ```elixir
 config :pleroma, :logger,
-  backends: [ {ExSyslogger, :ex_syslogger}]
+  backends: [{ExSyslogger, :ex_syslogger}]
 
 config :logger, :ex_syslogger,
   level: :info,