feat(space-control): reduce Space Control workspace limit to 1 (#542)

Author: wojciech-kulik

FlashSpace/Features/SpaceControl/SpaceControl.swift

@@ -146,8 +146,8 @@ enum SpaceControl {
             workspaces = workspaces.skipWithoutRunningApps()
         }
 
-        if workspaces.count < 2 {
-            Alert.showOkAlert(title: "Space Control", message: "You need at least 2 workspaces to use Space Control.")
+        if workspaces.isEmpty {
+            Alert.showOkAlert(title: "Space Control", message: "You need at least 1 workspace to use Space Control.")
             return false
         }
 

FlashSpace/Features/SpaceControl/Views/SpaceControlViewModel.swift

@@ -140,6 +140,11 @@ final class SpaceControlViewModel: ObservableObject {
         let width = screenFrame.width / CGFloat(numberOfColumns) - 120.0
         let height = screenFrame.height / CGFloat(numberOfRows) - 120.0
 
+        guard workspaces.count > 1 else {
+            tileSize = CGSize(width: width / 2.0, height: height / 2.0)
+            return
+        }
+
         let firstScreenshot = workspaces
             .lazy
             .compactMap { $0.screenshotData.flatMap(NSImage.init(data:)) }