api clients: return data, error, no status

jellyseerr already did this, but it's been standardised a little more.

Mediabrowser uses it's own genericErr function and error types due to
being a separate package, while jellyseerr and ombi now share errors
defined in common/.

html/admin.html

@@ -44,7 +44,7 @@
             </form>
         </div>
         <div id="modal-about" class="modal">
-            <div class="relative mx-auto my-[10%] w-11/12 sm:w-4/5 lg:w-1/3 content card">
+            <div class="relative mx-auto my-[10%] w-11/12 sm:w-4/5 lg:w-1/2 content card">
                 <img src="{{ .urlBase }}/banner.svg" class="banner header" alt="jfa-go banner">
                 <span class="heading"><span class="modal-close">&times;</span></span>
                 <p>{{ .strings.version }} <span class="text-black dark:text-white font-mono bg-inherit">{{ .version }}</span></p>