Fix broken lager_console_backend backend

[arcusfelis]

At some point we broke logs in the live shell, i.e.

_build/mim1/rel/mongooseim/bin/mongooseim console

Log message in log/ejabberd.log:

Lager fatally failed to install handler lager_console_backend into
lager_event, NOT retrying: {bad_console_config, info}

[codecov]

Codecov Report

Merging #1832 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1832      +/-   ##
==========================================
- Coverage   74.77%   74.77%   -0.01%     
==========================================
  Files         297      297              
  Lines       27737    27737              
==========================================
- Hits        20740    20739       -1     
- Misses       6997     6998       +1

Impacted Files	Coverage Δ
src/mod_mam_muc_odbc_async_pool_writer.erl	70.73% <0%> (-3.26%)	⬇️
...bal_distrib/mod_global_distrib_hosts_refresher.erl	82.6% <0%> (-2.18%)	⬇️
...c/global_distrib/mod_global_distrib_server_mgr.erl	79.57% <0%> (-0.71%)	⬇️
src/mod_muc.erl	72.62% <0%> (-0.28%)	⬇️
src/mod_muc_log.erl	77.69% <0%> (-0.26%)	⬇️
src/mod_roster.erl	78.92% <0%> (-0.25%)	⬇️
src/ejabberd_c2s.erl	84.35% <0%> (-0.23%)	⬇️
src/mod_muc_room.erl	77.3% <0%> (-0.18%)	⬇️
src/mod_pubsub.erl	66.07% <0%> (+0.06%)	⬆️
src/mod_mam_utils.erl	88.44% <0%> (+0.66%)	⬆️
... and 5 more

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