Refactor report abuse form to use DismissibleTextForm

[kumar303]

Part of the report abuse form was extracted into a reusable component. It landed in #10833

The ReportAbuseButton component should now use DismissibleTextForm. Take a look at ReportUserAbuse for an example of how to do the conversion.

For QA:

• go to an add-on detail page
• click Report Abuse
• make sure the abuse report form still works

[willdurand]

Bumping priority because other components use auto-save, so it'd be nice to have auto-save for that too.

[mirefly]

I am trying to refactor ReportAbuseButton using DismissibleTextForm. I found that the buttons for "report abuse" and "report user abuse" are different. Do you want to keep the "report abuse" button looks the same as before (red submit button) or being consistent with "report user abuse" button (blue submit button) ? The later one actually will be a bit easier, since no need to change style sheets much.

[kumar303]

Yes, they were designed at different times. I would suggest making it look consistent with 'report user abuse' because that one uses newer button styles.

[ioanarusiczki]

@kumar303 @willdurand
Report user for abuse works as before and the new design is available - verified on AMO dev and AMO stage FF64 (Win10 & Android 8.0).

AMO stage - new design

AMO prod - old design which is going to be replaced