Change the "Work with..." button styling after you've signed up

[ddgriffin]

After you've applied/signedup to work with a maker you get redirected to the details page with a nice flash but the button "work with maker" is still there which is slightly confusing. We should turn the button green with a checkmark AND have the modal that allows you to sign your daugher up

[cheyenneweaver]

• Just like we do for when you're following someone; make this Work With button conditional to show your signup state
• also remove the ability to sign yourself up again (for workshops)
• and allow a user to sign yourself up once for apprenticeships (which would help us admins test easier)

[cheyenneweaver]

Workshop buttons: x 1. workshop state = accepted? -- btn-primary "work with __" x 2. workshop state = accepted? && has closed signups -- btn-inverse "signups closed" x 3. workshop state = filled -- btn disabled with icon-checkmark "workshop filled" x 4. work_signup state = confirmed -- btn-success with icon-check "signed up" x 5. workshop state = completed -- btn-inverse with icon-checkmark "workshop has passed"

Apprenticeship buttons: x 1. apprenticeship state = accepted -- btn-primary "work with " x 2. apprenticeship state = filled -- btn diabled with icon-checkmark "apprenticeship filled" x 3. app_signup state = started -- btn-primary "finish applying" (NOT WORKING AS @app_signup) x 4. app_signup state = pending -- btn-warning with icon checkmark "application sent" x 5. app_signup state = accepted -- btn-warning with icon-bell (?) "confirm working with " x 6. app_signup state = confirmed -- btn-success with icon-checkmark "working with " x 7. app_signup state = completed -- btn-inverse "apprenticeship has passed" x 8. app_signup state = canceled -- btn-primary "reapply with "

x Also move the prereg link out from each block of conditional code so they can stand on their own (simpler)

• maybe do javascript rollover for "work with __" to sign up another user like we do with preregs

[cheyenneweaver]

I'm having an issue with apprenticeship state = filled because it needs to show up for those not signed in (so can't be && current_user)