Overlay to show when users click in "Search" in the fixed nav menu in mobile. <img width="450" alt="image" src="https://github.com/decidim/decidim/assets/24740/b4d37875-f0f9-4c72-adb4-1b2ffc2a8872"> https://www.figma.com/proto/nnrzYuWsEretZRuQZPWTR9/Decidim-PX---BETA-Final-Version?page-id=5882%3A318827&type=design&node-id=20025-128522&viewport=29583%2C-25184%2C1&scaling=scale-down&starting-point-node-id=5882%3A318830
Overlay to show when users click in "Search" in the fixed nav menu in mobile.
https://www.figma.com/proto/nnrzYuWsEretZRuQZPWTR9/Decidim-PX---BETA-Final-Version?page-id=5882%3A318827&type=design&node-id=20025-128522&viewport=29583%2C-25184%2C1&scaling=scale-down&starting-point-node-id=5882%3A318830