Add main() entrypoint for all scripts under bin

bin/fqo

@@ -51,17 +51,22 @@ def locate_files(patterns):
 
 
 # ========== Main Script ==========
-parser = argparse.ArgumentParser()
-parser.add_argument("patterns", nargs="+", help="file pattern to search for")
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("patterns", nargs="+", help="file pattern to search for")
 
-args = parser.parse_args()
+    args = parser.parse_args()
 
-try:
-    files = locate_files(args.patterns)
-# Locate binary is optional for package, but required for script
-except FileNotFoundError:
-    print("locate binary not found, install and re-run script")
-else:
-    selected_file = run_fzf(files)
+    try:
+        files = locate_files(args.patterns)
+    # Locate binary is optional for package, but required for script
+    except FileNotFoundError:
+        print("locate binary not found, install and re-run script")
+    else:
+        selected_file = run_fzf(files)
 
-subprocess.run([PACMAN_CMD, "-Qo", selected_file])
+    subprocess.run([PACMAN_CMD, "-Qo", selected_file])
+
+
+if __name__ == "__main__":
+    main()