Add case insensitivity checks for Mac and Linux platforms

src/main/decoder/decoder-utils.ts

@@ -0,0 +1,36 @@
+import log from "electron-log/main";
+import fs from "fs";
+import path from "path";
+
+const findFileCaseInsensitive = async (
+  extensionlessFilePath: string,
+  extensions: string[],
+): Promise<string | null> => {
+  const directory: string = path.dirname(extensionlessFilePath);
+  try {
+    const matchingFiles = fs
+      .readdirSync(directory)
+      .filter((file: string) =>
+        extensions.some((ext) =>
+          file.toLowerCase().endsWith(ext.toLowerCase()),
+        ),
+      );
+    const files: string[] = [];
+    matchingFiles.forEach((file) => {
+      const fullPath = path.join(directory, file);
+      files.push(fullPath);
+    });
+
+    // Return the first matching file if needed
+    if (files.length > 0) {
+      return files[0];
+    }
+  } catch (error) {
+    log.error(`Failed to read directory ${directory}:`, error);
+    throw error;
+  }
+
+  return null;
+};
+
+export { findFileCaseInsensitive };