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/extractors/filename_extractor.py

@@ -0,0 +1,59 @@
+import re
+from pathlib import Path
+from ..constants import SOURCE_DICT
+
+
+class FilenameExtractor:
+    """Class to extract information from filename"""
+
+    @staticmethod
+    def extract_title(file_path: Path) -> str | None:
+        """Extract movie title from filename"""
+        file_name = file_path.name
+        temp_name = re.sub(r'\s*\(\d{4}\)\s*|\s*\d{4}\s*|\.\d{4}\.', '', file_name)
+
+        # Find and remove source
+        source = FilenameExtractor.extract_source(file_path)
+        if source:
+            for alias in SOURCE_DICT[source]:
+                temp_name = re.sub(r'\b' + re.escape(alias) + r'\b', '', temp_name, flags=re.IGNORECASE)
+
+        return temp_name.rsplit('.', 1)[0].strip()
+
+    @staticmethod
+    def extract_year(file_path: Path) -> str | None:
+        """Extract year from filename"""
+        file_name = file_path.name
+        year_match = re.search(r'\((\d{4})\)|(\d{4})', file_name)
+        return (year_match.group(1) or year_match.group(2)) if year_match else None
+
+    @staticmethod
+    def extract_source(file_path: Path) -> str | None:
+        """Extract video source from filename"""
+        file_name = file_path.name
+        temp_name = re.sub(r'\s*\(\d{4}\)\s*|\s*\d{4}\s*|\.\d{4}\.', '', file_name)
+
+        for src, aliases in SOURCE_DICT.items():
+            for alias in aliases:
+                if re.search(r'\b' + re.escape(alias) + r'\b', temp_name, re.IGNORECASE):
+                    return src
+        return None
+
+    @staticmethod
+    def extract_resolution(file_path: Path) -> str | None:
+        """Extract resolution from filename (e.g., 2160p, 1080p, 720p)"""
+        file_name = file_path.name
+        match = re.search(r'(\d{3,4})[pi]', file_name, re.IGNORECASE)
+        if match:
+            height = int(match.group(1))
+            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'
+        return None