style: align translation controls with launcher design

Sources/Conjure/LauncherWindowController.swift

@@ -776,6 +776,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
         translation = controller
         controller.input = { [weak self] in self?.searchField.stringValue ?? "" }
         let previousQuery = searchField.stringValue
+        let previousPlaceholder = searchField.placeholderAttributedString
         controller.closed = { [weak self, weak controller] in
             guard let self, let controller else { return }
             controller.view.removeFromSuperview()
@@ -785,7 +786,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
                 view.setAccessibilityHidden(false)
                 view.alphaValue = 1
             }
-            self.searchField.placeholderString = "Search apps, calculate, or convert…"
+            self.searchField.placeholderAttributedString = previousPlaceholder
             self.searchField.setAccessibilityLabel("Search applications, calculate, or convert units and currencies")
             self.searchField.stringValue = previousQuery
             self.openButton.keyEquivalent = "\r"
@@ -796,7 +797,10 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
         (window as? LauncherPanel)?.resetNumberHints()
         openButton.keyEquivalent = ""
         searchField.stringValue = ""
-        searchField.placeholderString = "Enter English text to translate…"
+        searchField.placeholderAttributedString = NSAttributedString(
+            string: "Enter English text to translate…",
+            attributes: previousPlaceholder?.attributes(at: 0, effectiveRange: nil) ?? [:]
+        )
         searchField.setAccessibilityLabel("English text to translate into Japanese")
         for view in launcherViews.dropFirst() {
             view.isHidden = true