fix(main): NoSectionError on generating cfg

Author: wyapx

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "nekobox"
-version = "0.1.1"
+version = "0.1.2"
 description = "A Satori backend powered by lagrange-python"
 authors = [
     {name = "wyapx", email = "[email protected]"},

src/nekobox/__main__.py

@@ -1,3 +1,4 @@
+import configparser
 import shutil
 import asyncio
 import secrets
@@ -71,7 +72,11 @@ def set_cfg(
                 i = default
         if i and unique and i not in unique:
             raise ValueError
+
+        if not cfg.has_section(section):
+            cfg.add_section(section)
         cfg.set(section, option, i)
+
         return i
     except (TypeError, ValueError):
         print(f">>> 输入不符合约束: {green}{unique}{reset}")