fix: Theme toggle icon now changes (#1156)

### PR Checklist

- [X] The PR title follows
[conventional commits](https://www.conventionalcommits.org/en/v1.0.0/)
- [X] Does the PR have changes to the frontend? If so, include
screenshots or a
      recording of the changes.
<br/>If it affect colors, please include screenshots/recording in both
      light and dark mode.
Before:

![imagen](https://github.com/user-attachments/assets/5f88fcea-0558-4ca6-8430-de1b76c2f6f4)

After:      

![imagen](https://github.com/user-attachments/assets/b91e09c7-0d63-4d5b-b6c1-cf603ef2097c)

Author: EGAMAGZ

api/src/docs/bulb.svg

@@ -52,7 +52,7 @@ export default function DarkModeToggle() {
       aria-label={isDark ? "Switch to light mode" : "Switch to dark mode"}
       type="button"
     >
-      {isDark
+      {isDark.value
         ? <TbBrightnessUpFilled class="size-5" />
         : <TbMoonFilled class="size-5" />}
     </button>