Remove unneeded dotfiles (firezone#1412)

Leftovers from a distant past

Fix recursive ping timer (firezone#1408)

Fixes recursively initializing the ping timer...

Fix unique name constraint and render error on MFA register form (fir…

…ezone#1403)

Closes firezone#1402

Add version tag to migrate script (firezone#1400)

* Add new `VERSION` to `docker_migrate.sh` script
* Add missing `SAML_KEYFILE_PATH` and `SAML_CERTFILE_PATH` env vars to
migrate script
* Add missing `PHOENIX_PORT` var
* Bump Elixir to 1.14.3
* Bump Erlang to 25.2.1
* Update docs to document new VERSION var in docker-compose.yml upgrade
mechanism

Fixes firezone#1395

Increase load peer timeout (firezone#1396)

Temporary workaround for a rare issue where many peers (> hundreds)
cause a timeout for the `GenServer.call` function, preventing the
`wireguard_public_key` from being set properly.

This will be removed in 0.8, so only an increased timeout is needed for
now.

Change default_client_allowed_ips type to string (firezone#1387)

Closes firezone#1374

Fix LiveView disconnect when config is downloaded (firezone#1384)

Fixes firezone#1353

Fix SAML regression (firezone#1371)

Regression was introduced in firezone#1350: the path order did not allow auth
callback to be ever called.

Additionally, acceptance tests for SAML are added and we added a
blacklist of SAML config ids to prevent further route collisions.

Fixes firezone#1362

Fix outbound mailer config changeset (firezone#1355)

Fixes firezone#1354

Rework MFA methods (firezone#1339)

1. We enforce `last_used_at` to be not nil at the database level
2. The `name` is now unique to prevent ambiguity, it also can't be
longer than 255 chars
3. The MFA module was rewritten to follow the style applied to Users
before with much better test coverage, its API changed to be less
generic (like just create/update -> create/use_code)
4. The multi-step form was reworked to use new methods instead of
changeset and doing direct `Repo.insert/1`.

Closes firezone#1323