This commit lays the groundwork for a tabular UI to configure filename
patterns for linked files. The core logic is implemented, mirroring the
structure used for Citation Key Patterns. UI implementation and integration
with LinkedFilesTab will be addressed in later commits.

…on UI

This commit replace the old ui with tabular UI to configure filename
patterns for linked files. The core logic is implemented, mirroring the
structure used for Citation Key Patterns. UI implementation and integration
with LinkedFilesTab will be addressed in later commits.

This commit improves the UI and makes it functional. However, core logic still needs to be implemented.

IMPORTANT TODO:
1. Update CleanupPresetPanel.java in gui/cleanup:
   - Temporarily added .toString() to filePreferences.getFileNamePattern()
   - Need to modify this as the new GlobalFilenamePattern object stores patterns
     for different file types, not just a single pattern

2. Refactor getSuggestedFileName in logic/externalfiles/LinkedFileHandler.java:
   - Current implementation expects a single file name pattern
   - Need to update to work with the new GlobalFilenamePattern object

Note: These changes may affect other parts of the application that rely on
the previous file name pattern implementation. Further testing and updates
may be required.

…files-pattern-logic-#2

This commit improves the UI and makes it functional. However, core logic still needs to be implemented.

IMPORTANT TODO:
1. Update CleanupPresetPanel.java in gui/cleanup:
   - Temporarily added .toString() to filePreferences.getFileNamePattern()
   - Need to modify this as the new GlobalFilenamePattern object stores patterns
     for different file types, not just a single pattern

2. Refactor getSuggestedFileName in logic/externalfiles/LinkedFileHandler.java:
   - Current implementation expects a single file name pattern
   - Need to update to work with the new GlobalFilenamePattern object

Note: These changes may affect other parts of the application that rely on
the previous file name pattern implementation. Further testing and updates
may be required.

Major change:
- Refactored `createFileNameFromPattern` in `FileUtil` to generate filenames dynamically based on the `EntryType`.
- Add store and load for FilePreferences
**Note:** Related test cases currently encounter compile errors and require fixes.

…files-pattern-logic-#2

Linked files pattern logic and UI #1 #2