Add page numbers (#4500)

# Description of Changes

Idk why i added a brightness detector for white/black text but hey its
been done now


## 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)

### 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.

---------

Co-authored-by: EthanHealy01 <80844253+EthanHealy01@users.noreply.github.com>

frontend/src/data/useTranslatedToolRegistry.tsx

@@ -90,6 +90,8 @@ import ScannerImageSplitSettings from "../components/tools/scannerImageSplit/Sca
 import ChangeMetadataSingleStep from "../components/tools/changeMetadata/ChangeMetadataSingleStep";
 import SignSettings from "../components/tools/sign/SignSettings";
 import CropSettings from "../components/tools/crop/CropSettings";
+import AddPageNumbers from "../tools/AddPageNumbers";
+import { addPageNumbersOperationConfig } from "../components/tools/addPageNumbers/useAddPageNumbersOperation";
 import RemoveAnnotations from "../tools/RemoveAnnotations";
 import RemoveAnnotationsSettings from "../components/tools/removeAnnotations/RemoveAnnotationsSettings";
 import PageLayoutSettings from "../components/tools/pageLayout/PageLayoutSettings";
@@ -444,11 +446,13 @@ export function useFlatToolRegistry(): ToolRegistry {
       addPageNumbers: {
         icon: <LocalIcon icon="123-rounded" width="1.5rem" height="1.5rem" />,
         name: t("home.addPageNumbers.title", "Add Page Numbers"),
-        component: null,
-
+        component: AddPageNumbers,
         description: t("home.addPageNumbers.desc", "Add Page numbers throughout a document in a set location"),
         categoryId: ToolCategoryId.STANDARD_TOOLS,
         subcategoryId: SubcategoryId.PAGE_FORMATTING,
+        maxFiles: -1,
+        endpoints: ["add-page-numbers"],
+        operationConfig: addPageNumbersOperationConfig,
         synonyms: getSynonyms(t, "addPageNumbers")
       },
       pageLayout: {