[ui] UI enhancements and activation Bug fix

- Fix permission list placement in the anonymous ID preference page
- Rename advanced button to configure
- Flush activation preference
- Improved heartbeat intervals description
- Use latest parent POM
- Fix a bug where heartbeat sends Bundle-Name, not -SymbolicName

Change-Id: I1320521669f52a6a90c51687416d1fd871892c97
Signed-off-by: Yasser Aziza <yasser.aziza@gmail.com>
Signed-off-by: Andreas Sewe <andreas.sewe@codetrails.com>