fix: Workaround for uv/uvx bug

The uv/uvx tools break scripts that contain a __future__ import by
injecting a multiline string infront of it. Future imports are
very limited on where they can appear.
See astral-sh/uv#6489

We cannot remove the __future__ import in bottle-0.13 because Python 2.7 support
still depends on it, but we can move it above the docstring, so the uv/uvx
modifications no longer trigger a SyntaxError.

fix #1486

Author: defnull

bottle.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
+from __future__ import print_function
 """
 Bottle is a fast and simple micro-framework for small web applications. It
 offers request dispatching (Routes) with URL parameter support, templates,
@@ -13,7 +14,6 @@
 License: MIT (see LICENSE for details)
 """
 
-from __future__ import print_function
 import sys
 
 __author__ = 'Marcel Hellkamp'