test: only change themes in theme tests

macos/GhosttyUITests/GhosttyCommandPaletteTests.swift

@@ -8,7 +8,6 @@
 import XCTest
 
 final class GhosttyCommandPaletteTests: GhosttyCustomConfigCase {
-    override static var runsForEachTargetApplicationUIConfiguration: Bool { false }
     @MainActor func testDismissingCommandPalette() async throws {
         let app = try ghosttyApplication()
         app.activate()

macos/GhosttyUITests/GhosttyCustomConfigCase.swift

@@ -23,10 +23,6 @@ class GhosttyCustomConfigCase: XCTestCase {
         }
     }
 
-    override class var runsForEachTargetApplicationUIConfiguration: Bool {
-        true
-    }
-
     static let defaultsSuiteName: String = "GHOSTTY_UI_TESTS"
 
     var configFile: URL?

macos/GhosttyUITests/GhosttyMouseStateTests.swift

@@ -8,8 +8,6 @@
 import XCTest
 
 final class GhosttyMouseStateTests: GhosttyCustomConfigCase {
-    override static var runsForEachTargetApplicationUIConfiguration: Bool { false }
-
     // https://github.com/ghostty-org/ghostty/pull/11276
     @MainActor func testSelectionFocusChange() async throws {
         let app = XCUIApplication()

macos/GhosttyUITests/GhosttyThemeTests.swift

@@ -9,6 +9,10 @@ import AppKit
 import XCTest
 
 final class GhosttyThemeTests: GhosttyCustomConfigCase {
+    override static var runsForEachTargetApplicationUIConfiguration: Bool {
+        true
+    }
+
     let windowTitle = "GhosttyThemeTests"
     private func assertTitlebarAppearance(
         _ appearance: XCUIDevice.Appearance,

macos/GhosttyUITests/GhosttyWindowPositionUITests.swift

@@ -8,8 +8,6 @@
 import XCTest
 
 final class GhosttyWindowPositionUITests: GhosttyCustomConfigCase {
-    override static var runsForEachTargetApplicationUIConfiguration: Bool { false }
-
     // MARK: - Cascading
 
     @MainActor func testWindowCascading() async throws {