feat: add login to both databases

feat: add table usuario for both databases

fix: add required to alterar.php inputs

fix: remove more repeated classes

refactor: add tailwindcss component

feat: add a menu to all operation forms

refactor: move css from 'src/' to 'src/assets/css/'

feat: improve all Autoria's (DB) listar.php layout

fix: Autoria's Model Class and form layout

feat: improve all alterar.php style and layout

feat: finish Autoria's alterar.php and add a new css component

feat: add and finish Autor's alterar.php

feat: finish Livro's alterar.php

feat: finish alterar.php

feat: create alterar.php

feat: improve project architecture

feat: add Produto alterar.php base

feat: add excluir.php and pesquisar.php functionality for all 4 tables

chore: add .gitignore

docs: update readme

refactor: add pesquisar.php and excluir.php for all tables, move oper…

refactor: rename .html to .php

docs: add readme

chore: add files