feat: restructure renamer package and implement media extraction features

- Updated `pyproject.toml` to reflect new package structure.
- Created `renamer/__init__.py` to initialize the package.
- Implemented `RenamerApp` in `renamer/app.py` for the main application interface.
- Added constants for video extensions in `renamer/constants.py`.
- Developed `MediaExtractor` class in `renamer/extractor.py` for extracting metadata from media files.
- Created various extractor classes in `renamer/extractors/` for handling filename, metadata, and media info extraction.
- Added formatting classes in `renamer/formatters/` for displaying media information and proposed filenames.
- Implemented utility functions in `renamer/utils.py` for detecting file types and extracting media track information.
- Introduced `OpenScreen` in `renamer/screens.py` for user input of directory paths.
- Enhanced error handling and user feedback throughout the application.

renamer/formatters/resolution_formatter.py

@@ -0,0 +1,21 @@
+class ResolutionFormatter:
+    """Class for formatting video resolutions"""
+    
+    @staticmethod
+    def format_resolution_p(height: int) -> str:
+        """Format resolution as 2160p, 1080p, etc."""
+        if height >= 2160:
+            return '2160p'
+        elif height >= 1080:
+            return '1080p'
+        elif height >= 720:
+            return '720p'
+        elif height >= 480:
+            return '480p'
+        else:
+            return f'{height}p'
+    
+    @staticmethod
+    def format_resolution_dimensions(width: int, height: int) -> str:
+        """Format resolution as WIDTHxHEIGHT"""
+        return f"{width}x{height}"