update: clear unused and fixes CSS

.gitlab-ci.yml

src/dependencies.pug

src/header.pug

src/page-circle.pug

src/page-project.pug

src/styles/base/form.scss

src/styles/base/header.scss

src/styles/base/main.scss

src/styles/base/table.scss

src/styles/base/user-thumb.scss

src/styles/components/_index.scss

src/styles/components/howto.scss

src/styles/components/tags.scss

src/styles/index.scss

src/styles/layout/circle/_index.scss

src/styles/layout/circle/circle-profile.scss

src/styles/layout/circle/circle.scss

src/styles/layout/job-offers/job-offers.scss

src/styles/layout/project-profile/project.scss

src/styles/layout/project/_index.scss