feature+ui(circles): issue #91 CSS - Right menu of circles + issue #92 CSS - circle-create + issue #93 HTML-CSS - circle-profile

Add styles to the right menu and fix bug on toggle
Add styles to the form
Add styles and HTML to circle-profile
Add styles to sib-form-multiple-dropdown
Clean up content.scss and circle-profile

Transform svg files + add them as font.
Review and correct HTML architecture.
Review and add styles.
Open/close menu on right + expand content.