Settings dialog refactored to take explicit props, gains scrolling and click-to-select

What

• The Settings/Config dialog (and related Status/Stats/Usage views) now receive mcpClients, messages, ideInstallationStatus, and other data as explicit separate props, instead of a single bundled context object.
• Several call sites were switched to use this updated component with the new explicit props.
• The dialog now supports mouse-wheel scrolling, and gained click handling: an unclaimedPaneClick event routes clicks not claimed by a specific row into row selection/activation, with the dialog content wrapped in a clickable container.

Why

This reworks how the settings dialog gets its data (explicit props instead of a hidden bundled object) and adds mouse-wheel scrolling plus click-to-select interaction to the settings panel.