Fix dashboard main panel not expanding with window width.

Set horizontal content hugging so the sidebar keeps fixed width and
mainHost absorbs extra space. Set content stack distribution to fill.

Co-authored-by: Cursor <cursoragent@cursor.com>

App for Indeed/Views/DashboardView.swift

@@ -77,6 +77,7 @@ final class DashboardView: NSView {
 
         contentStack.orientation = .horizontal
         contentStack.spacing = 20
+        contentStack.distribution = .fill
         contentStack.translatesAutoresizingMaskIntoConstraints = false
         contentStack.alignment = .height
         contentStack.edgeInsets = NSEdgeInsets(top: 24, left: 24, bottom: 24, right: 24)
@@ -107,6 +108,8 @@ final class DashboardView: NSView {
         mainHost.layer?.backgroundColor = Theme.mainHostBackground.cgColor
         mainHost.layer?.cornerRadius = 16
         mainHost.layer?.masksToBounds = true
+        sidebar.setContentHuggingPriority(.required, for: .horizontal)
+        mainHost.setContentHuggingPriority(.defaultLow, for: .horizontal)
 
         mainHost.addSubview(mainOverlay)