update favicon to blue warship icon (#3360)

## Description:

light mode:
<img width="160" height="31" alt="Screenshot 2026-03-05 at 1 44 26 PM"
src="https://github.com/user-attachments/assets/2b80979c-9a4a-45c2-9fbc-bd6e48ddd823"
/>

dark mode:
<img width="172" height="50" alt="Screenshot 2026-03-05 at 1 44 34 PM"
src="https://github.com/user-attachments/assets/2cfa12cb-cd8e-4466-a2e2-1ccb9b7f2538"
/>

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

## Please put your Discord username so you can be contacted if a bug or
regression is found:

evan

index.html

@@ -8,7 +8,7 @@
     />
     <title data-i18n="main.title">OpenFront (ALPHA)</title>
     <link rel="manifest" href="/manifest.json" />
-    <link rel="icon" type="image/x-icon" href="/images/Favicon.svg" />
+    <link rel="icon" type="image/svg+xml" href="/images/Favicon.svg" />
 
     <!-- Preload styles -->
     <style>