shortcuts and config menu (#4530)

# 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)

### 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: Claude <[email protected]>

frontend/src/App.tsx

@@ -4,6 +4,7 @@ import { FileContextProvider } from "./contexts/FileContext";
 import { NavigationProvider } from "./contexts/NavigationContext";
 import { FilesModalProvider } from "./contexts/FilesModalContext";
 import { ToolWorkflowProvider } from "./contexts/ToolWorkflowContext";
+import { HotkeyProvider } from "./contexts/HotkeyContext";
 import { SidebarProvider } from "./contexts/SidebarContext";
 import ErrorBoundary from "./components/shared/ErrorBoundary";
 import HomePage from "./pages/HomePage";
@@ -44,15 +45,17 @@ export default function App() {
             <NavigationProvider>
               <FilesModalProvider>
                 <ToolWorkflowProvider>
-                  <SidebarProvider>
-                    <ViewerProvider>
-                      <SignatureProvider>
-                      <RightRailProvider>
+                  <HotkeyProvider>
+                    <SidebarProvider>
+                      <ViewerProvider>
+                        <SignatureProvider>
+                          <RightRailProvider>
                             <HomePage />
                           </RightRailProvider>
-                      </SignatureProvider>
-                    </ViewerProvider>
-                  </SidebarProvider>
+                        </SignatureProvider>
+                      </ViewerProvider>
+                    </SidebarProvider>
+                  </HotkeyProvider>
                 </ToolWorkflowProvider>
               </FilesModalProvider>
             </NavigationProvider>