Share Set: Three Dot Dropdown

[alexrcabral]

This task defines the button option and corresponding locations for sharing sets in the v2 UI. 

Dropdown

A new option should be added above the option to Delete. This should be the option to "Share my work". In front of the text should be the share icon ("share", located under Mobile/Atoms/Icon/Light/Share in Invision). 

This should be added as an option on both the three dot "more options" dropdowns on the primary dashboard page, as well as on the individual problem set pages. 

Button alt text: "Share my work"

Reference

Style Guide + Official Mockups: https://invis.io/CQYLLW8J49U
Fonts: https://www.dropbox.com/sh/c12m6ufweyds20d/AAAdXNPOt8e52DkSAr9pd-a-a/Fonts?dl=0

Acceptance criteria: 

Given that I'm a student on my dashboard, if I click into the three dot dropdown on a problem set, I should encounter the option to Share my work. When I go into a specific problem set, and click the three dot dropdown at the top, I should encounter this same menu with the similar option to Share my work. 

[abaranowska1]

Tested
@rupeshparab In the ACC it was said that "Given that I'm a student on my dashboard, if I click into the three dot dropdown on a problem set, I should encounter the option to Share my work. When I go into a specific problem set, and click the three dot dropdown at the top, I should encounter this same menu with the similar option to Share my work."

Now I can see the share option only when I go into the Problem Set and click three-dot menu in the top right corner

[rupeshparab]

I have pushed a fix for this

Note: share option will be only shown for solution sets for now, it will be added for Problem sets in this task: #1609

[abaranowska1]

Thanks for the fix, now the share option is available from the solution sets three-dot menu from the dashboard and from the specific problem.