* remove pinning of flask
* apparently there are cases where current_user is None, which caused
  the check for 'current_user.is_anonymous' to fail

* The two extensions removed are now built into Jinja directly since
  v2.9.

* All data is moved to accounts user table, so there's no more data
  to display here.

* Fixes how profile fields are rendered together with email/password
  field in the registration form.

* Changes views and code to rely on the new profile field in accounts
  rather than having a separate database model here.

* Adds basic support for setting visibility preferences.

closes inveniosoftware#139

* add helper to be able to use the preferences form during signup, as
  already done for the profile form. Useful when used with hidden forms
  where user is registered with OAuth.

* ci: adds i18n workflow

test: adds dry extract_messages command

* update dependencies

* use --output-file instead of --dry-run as it is buggy

* move i18n test

* Update run-i18n-tests.sh

---------

Co-authored-by: mojib <[email protected]>
Co-authored-by: David Eckhard <[email protected]>
Co-authored-by: David <[email protected]>

* removed use of speaklater and replaced by using LazyString from
  invenio_i18n so from flask-babel

* remove unused import

* closes inveniosoftware/invenio-app-rdm#2162

 * closes  inveniosoftware/invenio-app-rdm#2069
 * add support for preferences.timezone

Co-Authored-by: Lauren-D <[email protected]>