web: respect reduced motion & transparency preferences

also cleaned up settings & device libs

web/src/routes/settings/advanced/debug/+page.svelte

@@ -15,23 +15,25 @@
 
 {#if $settings.advanced.debug}
     <div id="advanced-page">
-        device:
+        <h3>device:</h3>
         <div class="message-container subtext">
             is.iPad: {device.is.iPad}
             is.iPhone: {device.is.iPhone}
             is.iOS: {device.is.iOS}
             is.android: {device.is.android}
             is.mobile: {device.is.mobile}
-            preferredLocale: {device.preferredLocale}
+            prefers.language: {device.prefers.language}
+            prefers.reducedMotion: {device.prefers.reducedMotion}
+            prefers.reducedTransparency: {device.prefers.reducedTransparency}
             userAgent: {device.userAgent}
         </div>
 
-        app:
+        <h3>app:</h3>
         <div class="message-container subtext">
             is.installed: {app.is.installed}
         </div>
 
-        version:
+        <h3>version:</h3>
         <div class="message-container subtext">
             version: {version.version}
             commit: {version.commit.slice(0, 7)}

web/src/routes/settings/general/appearance/+page.svelte

@@ -39,15 +39,15 @@
     title={$t("settings.accessibility")}
 >
     <SettingsToggle
-        settingContext="accessibility"
+        settingContext="appearance"
         settingId="reduceTransparency"
         title={$t("settings.accessibility.transparency.title")}
         description={$t("settings.accessibility.transparency.description")}
     />
     <SettingsToggle
-        settingContext="accessibility"
-        settingId="reduceAnimations"
-        title={$t("settings.accessibility.animations.title")}
-        description={$t("settings.accessibility.animations.description")}
+        settingContext="appearance"
+        settingId="reduceMotion"
+        title={$t("settings.accessibility.motion.title")}
+        description={$t("settings.accessibility.motion.description")}
     />
 </SettingsCategory>