fix(district,region): center page spacing and conditional logic

district/blocks.py

...0056_alter_districtcenterpage_sidebar_content_and_more.py

district/models.py

district/templates/district/blocks/contact_block.html

district/templates/district/district_center_page.html

region/blocks.py

...migrations/0031_alter_regioncenterpage_sidebar_content.py

region/models.py

region/templates/region/blocks/contact_block.html

region/templates/region/region_center_page.html

shared/templates/shared/followus_snippet_column.html