feature(web): Added full-screen button and volume slider (#50)

## Pull Request Description

Adds the full screen toggle to web and the volume slider.
fix: small fixes for desktop padding
fix: only reload widgets when the content has changed

## Issue Being Fixed

Issue Number: #28

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Co-authored-by: PartyDonut <PartyDonut@users.noreply.github.com>

lib/widgets/navigation_scaffold/components/navigation_drawer.dart

@@ -41,9 +41,8 @@ class NestedNavigationDrawer extends ConsumerWidget {
       backgroundColor: isExpanded ? Colors.transparent : null,
       surfaceTintColor: isExpanded ? Colors.transparent : null,
       children: [
-        if (AdaptiveLayout.of(context).isDesktop || kIsWeb) const SizedBox(height: 16),
         Padding(
-          padding: const EdgeInsets.fromLTRB(28, 16, 16, 0),
+          padding: EdgeInsets.fromLTRB(28, AdaptiveLayout.of(context).isDesktop ? 0 : 16, 16, 0),
           child: Row(
             children: [
               Expanded(