Release v1.4.38 with version display formatting tweak

- Change header to "Multi Debrid Downloader - vX.X.X" (dash separator)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/renderer/App.tsx

@@ -1146,7 +1146,7 @@ export function App(): ReactElement {
       <header className="top-header">
         <div className="header-spacer" />
         <div className="title-block">
-          <h1>Multi Debrid Downloader{appVersion ? ` v${appVersion}` : ""}</h1>
+          <h1>Multi Debrid Downloader{appVersion ? ` - v${appVersion}` : ""}</h1>
         </div>
         <div className="metrics">
           <div>{snapshot.speedText}</div>