feat: migrate JSON handling to orjson

Replace stdlib json with orjson for faster serialization/deserialization
in file_to_json. Produces 2-space indented output via OPT_INDENT_2.

Author: juftin

browsr/widgets/windows.py

@@ -4,10 +4,10 @@
 
 from __future__ import annotations
 
-import json
 from json import JSONDecodeError
 from typing import Any, ClassVar
 
+import orjson
 import pandas as pd
 from art import text2art
 from numpy import nan
@@ -79,8 +79,10 @@ def file_to_json(self, file_path: UPath, max_lines: int | None = None) -> str:
         """
         code_str = self.file_to_string(file_path=file_path)
         try:
-            code_obj = json.loads(code_str)
-            code_str = json.dumps(code_obj, indent=2)
+            code_obj = orjson.loads(code_str)
+            code_str = orjson.dumps(code_obj, option=orjson.OPT_INDENT_2).decode(
+                "utf-8"
+            )
         except JSONDecodeError:
             pass
         if max_lines:

pyproject.toml

@@ -30,7 +30,8 @@ dependencies = [
   "universal-pathlib~=0.2.6",
   "Pillow>=11.3.0",
   "PyMuPDF~=1.26.3",
-  "pyperclip~=1.9.0"
+  "pyperclip~=1.9.0",
+  "orjson~=3.11.5"
 ]
 description = "TUI File Browser App"
 keywords = []