refactor(toolbar): rebuild quick switcher panel to the measured Spotlight spec

Author: datlechin

CHANGELOG.md

@@ -19,7 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Switcher, menus, and alerts now use each database's own container name: Dataset for BigQuery, Keyspace for Cassandra and ScyllaDB. (#509)
 - Quick Switcher highlights the matched characters in each result, finds better alignments for camelCase and snake_case names, and ranks items you open often and recently higher.
-- Quick Switcher now opens as a floating panel over the window instead of a modal sheet, with shortcut hints in the footer. On macOS 26 the panel uses Liquid Glass.
+- Quick Switcher now opens as a Spotlight-style floating panel over the window instead of a modal sheet: large borderless search field, scope chips, and rounded row selection. On macOS 26 the panel uses Liquid Glass.
 - The sidebar filter, database switcher, and connection switcher now use the same fuzzy matching as the Quick Switcher, so abbreviations like `upv` find `user_profile_view`.
 
 ### Fixed

TablePro/Views/QuickSwitcher/QuickSwitcherPanel.swift

@@ -42,7 +42,7 @@ internal final class QuickSwitcherPanelController: NSObject, NSWindowDelegate {
         let top: CGFloat
     }
 
-    private static let topOffsetRatio: CGFloat = 0.18
+    private static let topOffsetRatio: CGFloat = 0.20
 
     private var panel: QuickSwitcherPanel?
     private var anchor: Anchor?