web/settings: add a local processing page

web/src/routes/settings/local/+page.svelte

@@ -0,0 +1,24 @@
+<script lang="ts">
+    import { t } from "$lib/i18n/translations";
+
+    import SettingsToggle from "$components/buttons/SettingsToggle.svelte";
+    import SettingsCategory from "$components/settings/SettingsCategory.svelte";
+</script>
+
+<SettingsCategory sectionId="mux-convert" title={$t("settings.local.saving")} beta>
+    <SettingsToggle
+        settingContext="save"
+        settingId="localProcessing"
+        title={$t("settings.local.saving.title")}
+        description={$t("settings.local.saving.description")}
+    />
+</SettingsCategory>
+
+<SettingsCategory sectionId="webcodecs" title={$t("settings.local.webcodecs")} beta>
+    <SettingsToggle
+        settingContext="advanced"
+        settingId="useWebCodecs"
+        title={$t("settings.local.webcodecs.title")}
+        description={$t("settings.local.webcodecs.description")}
+    />
+</SettingsCategory>