Allow async JavaScript evaluation

[cyanzhong]

No description provided.

[Copilot]

Pull request overview

This PR adds an option for JavaScript evaluation to run via WebKit’s async JavaScript mechanism (Promise-based), exposing it both to the Shortcuts intent and AppleScript scripting interface.

Changes:

• Add a callAsync / callAsyncJavaScript boolean parameter to opt into Promise-based JS evaluation.
• Route JS evaluation through a new WKWebView.evaluateJavaScript(_:callAsync:completionHandler:) helper that uses callAsyncJavaScript when enabled.
• Update the scripting definition (.sdef) and string catalog entries to reflect the new parameter and related UI strings.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
MarkEditMac/Sources/Shortcuts/Intents/EvaluateJavaScriptIntent.swift	Adds callAsync intent parameter and uses the new WKWebView helper overload.
MarkEditMac/Sources/Scripting/EditorDocument+Scripting.swift	Adds AppleScript argument parsing for callAsyncJavaScript and passes it into JS evaluation.
MarkEditMac/Resources/MarkEdit.sdef	Adds callAsyncJavaScript boolean parameter to the scripting dictionary.
MarkEditMac/Resources/Localizable.xcstrings	Adds localizations for the new parameter title/description and updates related extracted strings.
MarkEditKit/Sources/Extensions/WKWebView+Extension.swift	Introduces the callAsync-aware JS evaluation wrapper using callAsyncJavaScript.

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

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