remove home & structure

...models/communication/website/index_page/administrators.rb

app/models/communication/website/index_page/authors.rb

...s/communication/website/index_page/communication_posts.rb

...ls/communication/website/index_page/education_programs.rb

app/models/communication/website/index_page/home.rb

app/models/communication/website/index_page/persons.rb

...els/communication/website/index_page/research_articles.rb

...dels/communication/website/index_page/research_volumes.rb

app/models/communication/website/index_page/researchers.rb

app/models/communication/website/index_page/teachers.rb

db/migrate/20220217183218_remove_unused_tables.rb

db/schema.rb