Polish up Done Button UI States
Summary:
Improves the UI quite a bit.
- `dashed` borders //everywhere// to denote **Unsubmitted**
- `$sky` sprinkled everywhere to denote **Done**
- Consilidate `inline-state-is-draft` to simply styles.
Test Plan:
Sent myself test comments, logged out, read comments on new account. Marked as done, submitted.
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Reviewers: btrahan, epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D12187
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