refactor: remove noqa comment from the __init__ file

[waketzheng]

Description

1. Add __all__ to docxtpl/__init__.py so that the # noqa comment is no longer needed.
2. Sort the import statement from .richtext import ....

Validation results:

• flake8 check:

$ flake8 docxtpl/__init__.py --count --max-line-length=127 --show-source --statistics
0

• Expose modules:

$ python -c 'from docxtpl import *; print(dir())'
['DocxTemplate', 'InlineImage', 'Listing', 'R', 'RP', 'RichText', 'RichTextParagraph', 'Subdoc', '__annotations__', '__builtins__', '__doc__', '__loader__', '__name__', '__package__', '__spec__']

• When docxcompose is not installed:

$ pip uninstall docxcompose
$ python -c 'from docxtpl import *; print(dir())'
['DocxTemplate', 'InlineImage', 'Listing', 'R', 'RP', 'RichText', 'RichTextParagraph', '__annotations__', '__builtins__', '__doc__', '__loader__', '__name__', '__package__', '__spec__']

[arturict]

Nice cleanup. Removing noqa can affect lint behavior; include before/after lint result in PR description?

[waketzheng]

Nice cleanup. Removing noqa can affect lint behavior; include before/after lint result in PR description?

@arturict Updated.

[JackSpiece]

Checked 32a2dba in separate environments with and without docxcompose. In both cases, from docxtpl import * exports exactly the names declared by docxtpl.__all__. The environment with docxcompose includes Subdoc; the environment without it imports cleanly and excludes only Subdoc.

The exact flake8 command and git diff --check pass locally, and the upstream test and codestyle matrix is green from Python 3.7 through 3.14. This preserves the optional dependency behavior while removing the blanket noqa. Looks good.