Please provide some details about this pull request:

• Remove SortDescriptions in CollectionViewSource and Refresh - Re-bind the datasource instead. It's somehow faster than calling Refresh()
• Use virtualizing
• Always show the scroll bar, because the performance is terrible if it is added on mouse over... maybe because the view is calculating the size again...
• Improve code to load group, profiles & profiles list. Reduce calls to update the profiles.
• Reselect or select first profile after search, add, edit, update, delete, etc.
• Update rectangle styles (error & warning)
• Check duplicate group is now case insensitive

Closes #1947
Fix #2019
Fix #2018

Bugs to fix:

• Actions in Settings\Profiles trigger a profiles refresh in the main app even if it's not visible...

Implement:

• NetworkInterface,
• IPScanner,
• PortScanner,
• PingMonitor,
• Traceroute,
• DNSLookup,
• RemoteDesktop,
• PowerShell,
• PuTTY,
• AWSSessionManager,
• TigerVNC,
• WebConsole,
• WakeOnLAN,
• Whois

Tests:

ToDo:

• Update changelog to reflect this changes

By submitting this pull request, I confirm the following:

• I have read and understood the contributing guidelines and the code of conduct.
• I have have added my name, username or email to the contributors list or don't want to.
• The code or resource is compatible with the GNU General Public License v3.0.