fix(app): tighten mobile utility UI (#32799)

packages/app/src/components/debug-bar.tsx

@@ -363,7 +363,7 @@ export function DebugBar() {
   return (
     <aside
       aria-label={language.t("debugBar.ariaLabel")}
-      class="pointer-events-auto fixed bottom-3 right-3 z-50 w-[308px] max-w-[calc(100vw-1.5rem)] overflow-hidden rounded-xl border border-border-base bg-surface-raised-stronger-non-alpha p-0.5 text-text-strong shadow-[var(--shadow-lg-border-base)] sm:bottom-4 sm:right-4 sm:w-[324px]"
+      class="pointer-events-auto fixed bottom-3 right-3 z-50 hidden w-[308px] max-w-[calc(100vw-1.5rem)] overflow-hidden rounded-xl border border-border-base bg-surface-raised-stronger-non-alpha p-0.5 text-text-strong shadow-[var(--shadow-lg-border-base)] md:block sm:bottom-4 sm:right-4 sm:w-[324px]"
     >
       <div class="grid grid-cols-5 gap-px font-mono">
         <Cell

packages/app/src/components/help-button.tsx

@@ -11,7 +11,7 @@ export function HelpButton() {
 
   return (
     <Show when={!state.dismissed}>
-      <div class="fixed bottom-4 right-4 z-50">
+      <div class="fixed bottom-4 right-4 z-50 hidden md:block">
         <Popover
           open={shown()}
           onOpenChange={setShown}

packages/app/src/components/settings-v2/settings-v2.css

@@ -167,6 +167,15 @@
   background-color: var(--v2-background-bg-layer-01);
 }
 
+@media (max-width: 639px) {
+  .settings-v2[data-component="tabs-v2"][data-variant="settings"][data-orientation="vertical"]
+    [data-slot="tabs-v2-list"] {
+    width: 144px;
+    min-width: 144px;
+    padding-inline: 8px;
+  }
+}
+
 .settings-v2-nav-footer {
   display: flex;
   flex-direction: column;