Connector access at a glance and other improvements

A round of fixes and improvements across Korey’s connector settings and navigation.

• See connector access at a glance. Connector settings now clearly show whether each connection is organization-wide or individual.
• Updated the Connectors settings experience with a refreshed design that makes connection details easier to understand and manage.
• Improved sidebar layout by fixing an oversized “Delegate to agent” button.
• Local Shortcut links in entity previews now stay within Korey instead of redirecting externally.