Modify Edit Details strategy

Some early usability feedback is showing that the `Edit Details` action button strategy could be improved for the following widgets:

- editcontent
- editdiscussion
- editgroup
- editprofile

All of this should start using the `manageaccess` action button strategy. The `Edit details/Edit profile/etc.` action buttons should become `Save` action buttons that are disabled by default. As soon as a field is modified, the action button should be enabled.