fix: View option for binary-data shouldn't download the file on Chrome/Edge (#4995)

* delete unused code

* fix: Do not set the `Content-Disposition` header when viewing binary files

* remove the duplicate styles.

these already exist in BinaryDataDisplayEmbed.vue

packages/cli/src/Server.ts

@@ -1515,7 +1515,9 @@ class App {
 					identifier,
 				);
 				if (mimeType) res.setHeader('Content-Type', mimeType);
-				if (fileName) res.setHeader('Content-Disposition', `attachment; filename="${fileName}"`);
+				if (req.query.mode === 'download' && fileName) {
+					res.setHeader('Content-Disposition', `attachment; filename="${fileName}"`);
+				}
 				res.setHeader('Content-Length', fileSize);
 				res.sendFile(binaryPath);
 			},