Split hide_network into hide_followers & hide_followings

src/components/user_settings/user_settings.js

src/components/user_settings/user_settings.vue

src/i18n/de.json

src/i18n/en.json

src/i18n/ja.json

src/i18n/ko.json

src/i18n/ru.json

src/services/api/api.service.js

src/services/entity_normalizer/entity_normalizer.service.js