add "Zadavatel | zpracovatel" text to all copyleft footers

czech_inspirational/templates/czech_inspirational/base.html

district/templates/district/base.html

districts/templates/districts/base.html

donate/templates/donate/base.html

donate/templates/donate/donate_project_page_coalition.html

green_deal/templates/green_deal/base.html

main/migrations/0079_alter_mainprogrampage_program.py

regulace_konopi/templates/regulace_konopi/base.html

senate/templates/senate/base.html

tuning/templates/tuning/sites_list.html

uniweb/templates/uniweb/base.html