[ADD] cross choosing person option

district/blocks.py

...ions/0050_alter_districtcrossroadpage_content_and_more.py

district/templates/district/blocks/people_group_block.html

region/blocks.py

...ations/0025_alter_regioncrossroadpage_content_and_more.py

region/templates/region/blocks/people_group_block.html