Feature/v2/add image (#4956)

# Description of Changes

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Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)
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---

## 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/devGuide/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/devGuide/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/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### 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/devGuide/DeveloperGuide.md#6-testing)
for more details.

frontend/src/core/components/annotation/shared/ImageUploader.tsx

@@ -43,16 +43,18 @@ export const ImageUploader: React.FC<ImageUploaderProps> = ({
     <Stack gap="sm">
       <PrivateContent>
         <FileInput
-          label={label || t('sign.image.label', 'Upload signature image')}
+          label={label}
           placeholder={placeholder || t('sign.image.placeholder', 'Select image file')}
           accept="image/*"
           onChange={handleImageChange}
           disabled={disabled}
         />
       </PrivateContent>
-      <Text size="sm" c="dimmed">
-        {hint || t('sign.image.hint', 'Upload an image of your signature')}
-      </Text>
+      {hint && (
+        <Text size="sm" c="dimmed">
+          {hint}
+        </Text>
+      )}
     </Stack>
   );
 };