Merge branch 'mmoser/modernization' into 'master'

CHANGES.rst

...mantic-ui/js/invenio_theme_tuw/landing_page/CopyButton.js

.../js/invenio_theme_tuw/landing_page/RecordCitationField.js

...ts/semantic-ui/js/invenio_theme_tuw/landing_page/index.js

...ui/less/invenio_theme_tuw/theme/elements/button.overrides

...templates/semantic-ui/invenio_app_rdm/help/search.de.html

...templates/semantic-ui/invenio_app_rdm/records/detail.html

...templates/semantic-ui/invenio_app_rdm/records/search.html

...plates/semantic-ui/invenio_theme_tuw/details/details.html

...lates/semantic-ui/invenio_theme_tuw/details/side_bar.html

...e_tuw/templates/semantic-ui/invenio_theme_tuw/footer.html

...e_tuw/templates/semantic-ui/invenio_theme_tuw/header.html

...templates/semantic-ui/invenio_theme_tuw/header_login.html

...lates/semantic-ui/invenio_theme_tuw/login/login_user.html

...emplates/semantic-ui/invenio_theme_tuw/macros/detail.html

...eme_tuw/templates/semantic-ui/invenio_theme_tuw/page.html

...tuw/templates/semantic-ui/invenio_theme_tuw/policies.html

invenio_theme_tuw/version.py

invenio_theme_tuw/views.py

invenio_theme_tuw/webpack.py