fix: panel may re-center when searching

src/ui/main-window/TilesPanel.swift

@@ -6,7 +6,6 @@ class TilesPanel: NSPanel {
     static var maxPossibleAppIconSize = NSSize.zero
     static var shared: TilesPanel!
     private var frozenTopCenter: NSPoint?
-    private var highWaterWidth: CGFloat = 0
     private var highWaterHeight: CGFloat = 0
 
     convenience init() {
@@ -56,21 +55,17 @@ class TilesPanel: NSPanel {
             resetFrozenPosition()
             return
         }
-        if size.width > highWaterWidth || size.height > highWaterHeight {
+        if size.height > highWaterHeight {
             NSScreen.preferred.repositionPanel(self)
-            highWaterWidth = size.width
             highWaterHeight = size.height
             frozenTopCenter = NSPoint(x: frame.midX, y: frame.maxY)
         } else if let topCenter = frozenTopCenter {
-            let x = topCenter.x - size.width * 0.5
-            let y = topCenter.y - size.height
-            setFrameOrigin(NSPoint(x: x, y: y))
+            setFrameOrigin(NSPoint(x: topCenter.x - size.width * 0.5, y: topCenter.y - size.height))
         }
     }
 
     func resetFrozenPosition() {
         frozenTopCenter = nil
-        highWaterWidth = 0
         highWaterHeight = 0
     }