exception handling and exception improvements (#3858)

# Description of Changes

This pull request introduces several improvements to enhance error
handling, internationalization, and documentation in the codebase. The
key changes include the addition of `ExceptionUtils` and `I18nUtils`
utility classes for consistent exception handling and internationalized
messages, updates to documentation paths, and modifications to existing
methods to integrate the new utilities.

### Error Handling Enhancements:
* **Added `ExceptionUtils` utility class**: Provides standardized
methods for creating and handling exceptions with internationalized
error messages, including specific handling for PDF corruption,
encryption issues, and other file-related errors.
* **Integrated `ExceptionUtils` into `CustomPDFDocumentFactory`**:
Updated `loadFromFile` and `loadFromBytes` methods to log and handle
exceptions using `ExceptionUtils`, ensuring consistent error handling
across PDF operations.
[[1]](diffhunk://#diff-10208c1fc2e04631a8cf2a2a99b2a1160e532e75a7b840ad752f3b0130b89851R358-R363)
[[2]](diffhunk://#diff-10208c1fc2e04631a8cf2a2a99b2a1160e532e75a7b840ad752f3b0130b89851R375-R381)
* **Updated `FileToPdf` to use `ExceptionUtils`**: Replaced direct
exception throwing with `ExceptionUtils.createHtmlFileRequiredException`
for unsupported file formats.

### Internationalization Improvements:
* **Added `I18nUtils` utility class**: Centralized access to Spring's
`MessageSource` for retrieving localized messages, enabling consistent
internationalization across the application.

### Documentation Updates:
* **Updated documentation paths in `CONTRIBUTING.md` and `README.md`**:
Changed paths to reference the new `devGuide` folder for developer
documentation and translation guides.
[[1]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L28-R28)
[[2]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L40-R51)
[[3]](diffhunk://#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5L171-L174)
---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

---------

Co-authored-by: a <a>

scripts/split_photos.py

@@ -94,8 +94,14 @@ def split_photos(input_file, output_directory, tolerance=30, min_area=10000, min
         cropped_image = image[y:y+h, x:x+w]
         cropped_image = auto_rotate(cropped_image, angle_threshold)
 
-        # Remove the added border
-        cropped_image = cropped_image[border_size:-border_size, border_size:-border_size]
+        # Remove the added border, but ensure we don't create an empty image
+        if border_size > 0 and cropped_image.shape[0] > 2 * border_size and cropped_image.shape[1] > 2 * border_size:
+            cropped_image = cropped_image[border_size:-border_size, border_size:-border_size]
+
+        # Check if the cropped image is valid before saving
+        if cropped_image.size == 0 or cropped_image.shape[0] == 0 or cropped_image.shape[1] == 0:
+            print(f"Warning: Skipping empty image for region {idx+1}")
+            continue
 
         output_path = os.path.join(output_directory, f"{input_file_basename}_{idx+1}.png")
         cv2.imwrite(output_path, cropped_image)