Some deprecation warnings, formal and typo fixes

[Badiboy]

No description provided.

[Badiboy]

#2384

ChatMemberXXX classes also redesigned.

[Copilot]

Pull Request Overview

This PR addresses deprecation warnings, formal improvements, and typo fixes across the codebase. The changes improve code quality by making abstract base classes explicit, adding proper constructor implementations, and cleaning up formatting issues.

• Converts several base classes to proper Abstract Base Classes (ABC) with explicit constructors
• Implements missing __init__ methods for ChatMember subclasses that previously used pass
• Fixes test data and removes trailing whitespace/empty lines

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 7 comments.

File	Description
tests/test_types.py	Updates test data to use "left" status instead of "administrator" and removes trailing empty lines
telebot/types.py	Makes base classes abstract, implements missing constructors, adds deprecation warnings, and improves code formatting
telebot/apihelper.py	Adds explicit return statement and improves error handling with proper exception raising

Comments suppressed due to low confidence (2)

[coder2020official]

Change self.class to type(self)

[coder2020official]

Otherwise lgtm

[Badiboy]

@coder2020official

To be sure you saw it: #2505 (comment)

[coder2020official]

Yes, understood