feat: Implement interactive popup dragging and resizing

[sabry-awad97]

This commit introduces interactive dragging and resizing functionality to the tui-popup crate.

Changes include:

• Added an interactive example demonstrating the new features.
• Updated PopupState to manage interaction state (dragging and resizing).
• Modified Popup widget to render a resize handle.
• Implemented mouse event handling for dragging and resizing.
• Added constraints to keep the popup within terminal bounds and enforce minimum size.

These changes allow users to interactively reposition and resize popups within the terminal, improving the user experience.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 76.28458% with 60 lines in your changes missing coverage. Please review.

Project coverage is 72.28%. Comparing base (cad0d3e) to head (e322341).

Files with missing lines	Patch %	Lines
tui-popup/src/popup_state.rs	78.01%	42 Missing :warning:
tui-popup/src/popup.rs	70.96%	18 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #59      +/-   ##
==========================================
+ Coverage   71.51%   72.28%   +0.76%     
==========================================
  Files          15       15              
  Lines        2503     2742     +239     
==========================================
+ Hits         1790     1982     +192     
- Misses        713      760      +47     

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