template changes

src/covid19/blueprints/owid/owid_model.py

src/covid19/blueprints/owid/owid_views.py

...nts/owid/templates/owid/continent/owid_continent_all.html

...nts/owid/templates/owid/continent/owid_continent_one.html

...eprints/owid/templates/owid/country/owid_country_all.html

...s/owid/templates/owid/country/owid_country_all_table.html

...eprints/owid/templates/owid/country/owid_country_one.html

...owid/templates/owid/country/owid_country_one_germany.html

...d/templates/owid/country/owid_country_one_pagination.html

.../templates/owid/date_reported/owid_date_reported_all.html

.../templates/owid/date_reported/owid_date_reported_one.html

...ate_reported/owid_date_reported_one_cases_cumulative.html

.../owid/date_reported/owid_date_reported_one_cases_new.html

...te_reported/owid_date_reported_one_deaths_cumulative.html

...owid/date_reported/owid_date_reported_one_deaths_new.html

...lueprints/owid/templates/owid/imported/owid_imported.html

src/covid19/blueprints/owid/templates/owid/owid_info.html

src/covid19/blueprints/owid/templates/owid/owid_tasks.html