feat(safari): update localized strings

[nzeltzer]

Goal

Update localized strings

Closes #181

Todos:

• [x] Removes strings from Help menu item (taking things away)
• [x] Adds localized Needs Help copy (bringing things to the table)
• [x] One step forward; one step back

All Submissions:

• [x] Have you followed the guidelines in our Contributing document?
• [x] Have you checked to ensure there aren't other open Pull Requests for the same update/change?

[nzeltzer]

@collectedmind Hold off. Smartling wasn't smart.

[nzeltzer]

@collectedmind Good-to-go