fix: preserve uncommitted translation input

Sources/Conjure/LauncherWindowController.swift

@@ -37,6 +37,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
     private var launcherViews: [NSView] = []
     private var launcherFrameBeforeReview: NSRect?
     private var translation: TranslationController?
+    private var translationDraft: TranslationController.Draft?
     private var emojiPicker: EmojiPickerController?
     private var notes: NotesController?
     private let notesDirectory: URL?
@@ -886,7 +887,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
         let accessibilityLabel: String
         switch command {
         case .translate:
-            let tool = TranslationController(defaults: defaults, pasteboard: pasteboard)
+            let tool = TranslationController(defaults: defaults, pasteboard: pasteboard, draft: translationDraft)
             tool.dismiss = { [weak self] in self?.dismiss() }
             translation = tool
             tool.input = { [weak self] in self?.searchField.stringValue ?? "" }
@@ -931,6 +932,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
             guard let self, let controller else { return }
             controller.view.removeFromSuperview()
             self.translation?.providerControl.removeFromSuperview()
+            if let translation = self.translation { self.translationDraft = translation.draft }
             self.translationHeader.isHidden = true
             self.translation = nil
             self.emojiPicker = nil
@@ -976,7 +978,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
         commandBack.target = self
         commandBack.action = #selector(goBackCommand)
         commandBack.isHidden = false
-        searchField.stringValue = ""
+        searchField.stringValue = command == .translate ? translationDraft?.input ?? "" : ""
         searchField.placeholderAttributedString = NSAttributedString(
             string: placeholder,
             attributes: previousPlaceholder?.attributes(at: 0, effectiveRange: nil) ?? [:]
@@ -1011,6 +1013,8 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
         content.addSubview(controller.view)
         if let translation {
             translationHeader.addArrangedSubview(translation.providerControl)
+            commandBack.setAccessibilityLabel(translation.backAccessibilityLabel)
+            commandBack.toolTip = translation.backAccessibilityLabel
             translationHeader.isHidden = false
         }
         NSLayoutConstraint.activate([