114/Refactor Header Component
https://gitlab.com/lappis-unb/projects/SMI/smi-front/-/issues/114
- Refatorado o componente Header
- Criado testes unitarios
- Criado historia no Storybook
- Aplicado Clean Code
https://gitlab.com/lappis-unb/projects/SMI/smi-front/-/issues/114