Issue #70: ADD acessibility bar

src/app/components/About.js

src/app/components/AcessibilityBar.js

src/app/components/Cards.js

src/app/components/GroupButtonsFilters.js

src/app/components/GroupCardsCollections.js

src/app/components/Header.js

src/app/components/InfiniteScrollCards.js

src/app/components/Overlay.js

src/app/components/SearchComponent.js

src/app/components/ShareModal.js

src/app/components/SideBar.js

src/app/components/Title.js

src/app/components/UsersPageCard.js

src/app/entrar/components/LoginForm.js

src/app/entrar/components/SignupModal.js

src/app/globals.css

src/app/mec/page.js

src/app/perfil/[id]/components/AboutCard.js

src/app/perfil/[id]/components/FollowersCards.js

src/app/perfil/[id]/components/FollowingCards.js