Standardize the way we check for and display form errors
- Some views had a "Close" button. We've removed this, because we don't
want users accidentally hiding the validation errors and not knowing
what needs to be fixed.
- Some views used `li`, some used `p`, some used `span`. We've
standardized on `li`.
- Some views only showed the first error. We've standardized on showing
all of them.
- Some views added an `#error_explanation` div, which we've made
standard.
See merge request !3531
- Some views had a "Close" button. We've removed this, because we don't
want users accidentally hiding the validation errors and not knowing
what needs to be fixed.
- Some views used `li`, some used `p`, some used `span`. We've
standardized on `li`.
- Some views only showed the first error. We've standardized on showing
all of them.
- Some views added an `#error_explanation` div, which we've made
standard.
Remove 2FA status on enable page
The 2FA status on the enabling page is useless, since it always is `disabled`. A user is enabling 2FA, so he already knows that it is disabled.
### Before

### After

See merge request !3436
* visiting project will create notification setting if missing
* change notification setting per project even without membership
* use notification settings instead of membership on profile page
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Revert the avatar cropping feature
Reverts !2951 since the added 'mini_magick' dependency should be replaced by client-side croppping
See merge request !3223
Previously we were doing all of kinds of code gymnastics and flash abuse
in order to work with a Doorkeeper controller but have it _appear_ at
the `/profile/applications` path. Fortunately we can just tell Rails to
use a different controller to handle that route, and we get the best of
both worlds.