fix(mobile): native settings controls + soundboard/gif/call polish (M5)

Mobile-audit batch 5. Desktop provably unchanged (two review passes).

- Translate-language control: raw <select> (crowded narrow tiles + broke under
  non-default themes) -> the folds-native SettingsSelect used by every other
  dropdown in the settings screen (native-cinny; keeps aria-label).
- Ringtone/Soundboard volume sliders: moved from the fixed-width tile `after`
  slot (which squeezed the title on phones) to a full-width slider in the tile
  body, matching the night-light slider pattern.
- Screenshare-confirm popover: clamp maxWidth to the viewport so it can't run
  past the screen edges on a phone (inert on desktop).
- In-call soundboard editor rows wrap on a narrow popout instead of crushing the
  clip-name field.
- GifPicker: feed the giphy Grid the measured container width (useElementSize
  Observer) instead of a fixed 296px, so it doesn't overflow a <312px phone.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/features/call/CallControls.tsx

@@ -338,6 +338,9 @@ export function CallControls({ callEmbed }: CallControlsProps) {
               padding: '1rem 1.25rem',
               zIndex: 100,
               minWidth: '260px',
+              // Don't run past the screen edges on a narrow phone (centered via
+              // translateX(-50%)); clamp to the viewport minus a small margin.
+              maxWidth: `calc(100vw - 2 * ${config.space.S400})`,
               boxShadow: '0 8px 32px rgba(0,0,0,0.35)',
               display: 'flex',
               flexDirection: 'column',

src/app/features/settings/general/General.tsx

@@ -1898,27 +1898,27 @@ function Calls() {
         />
       </SequenceCard>
       <SequenceCard className={SequenceCardStyle} variant="SurfaceVariant" direction="Column">
-        <SettingTile
-          title="Ringtone Volume"
-          description="Volume of the incoming call ringtone."
-          after={
-            <Box direction="Row" alignItems="Center" gap="200" style={{ minWidth: '160px' }}>
-              <input
-                type="range"
-                min="0"
-                max="100"
-                step="5"
-                value={ringtoneVolume}
-                onChange={(e) => setRingtoneVolume(parseInt(e.target.value, 10))}
-                aria-label="Ringtone volume"
-                style={{ flex: 1, accentColor: color.Primary.Main }}
-              />
-              <Text size="T200" style={{ minWidth: '32px', textAlign: 'right' }}>
-                {ringtoneVolume}%
-              </Text>
-            </Box>
-          }
-        />
+        <SettingTile title="Ringtone Volume" description="Volume of the incoming call ringtone." />
+        <Box
+          direction="Row"
+          alignItems="Center"
+          gap="200"
+          style={{ padding: `0 ${config.space.S400} ${config.space.S300}` }}
+        >
+          <input
+            type="range"
+            min="0"
+            max="100"
+            step="5"
+            value={ringtoneVolume}
+            onChange={(e) => setRingtoneVolume(parseInt(e.target.value, 10))}
+            aria-label="Ringtone volume"
+            style={{ flex: 1, accentColor: color.Primary.Main }}
+          />
+          <Text size="T200" style={{ minWidth: '32px', textAlign: 'right' }}>
+            {ringtoneVolume}%
+          </Text>
+        </Box>
       </SequenceCard>
       <SequenceCard className={SequenceCardStyle} variant="SurfaceVariant" direction="Column">
         <SettingTile
@@ -1990,26 +1990,28 @@ function Calls() {
           }
         />
         {soundboardEnabled && (
-          <SettingTile
-            title="Soundboard Volume"
-            after={
-              <Box alignItems="Center" gap="200" style={{ minWidth: toRem(180) }}>
-                <input
-                  type="range"
-                  min={0}
-                  max={100}
-                  step={5}
-                  value={soundboardVolume}
-                  onChange={(e) => setSoundboardVolume(parseInt(e.target.value, 10))}
-                  style={{ flexGrow: 1 }}
-                  aria-label="Soundboard volume"
-                />
-                <Text size="T200" style={{ minWidth: toRem(36), textAlign: 'right' }}>
-                  {soundboardVolume}%
-                </Text>
-              </Box>
-            }
-          />
+          <>
+            <SettingTile title="Soundboard Volume" />
+            <Box
+              alignItems="Center"
+              gap="200"
+              style={{ padding: `0 ${config.space.S400} ${config.space.S300}` }}
+            >
+              <input
+                type="range"
+                min={0}
+                max={100}
+                step={5}
+                value={soundboardVolume}
+                onChange={(e) => setSoundboardVolume(parseInt(e.target.value, 10))}
+                style={{ flexGrow: 1 }}
+                aria-label="Soundboard volume"
+              />
+              <Text size="T200" style={{ minWidth: toRem(36), textAlign: 'right' }}>
+                {soundboardVolume}%
+              </Text>
+            </Box>
+          </>
         )}
       </SequenceCard>
     </Box>
@@ -2454,19 +2456,13 @@ function Messages() {
               : 'On-device translation isn’t available in this browser. Use a Chromium desktop browser (Chrome/Edge 138+) or the Lotus desktop app.'
           }
           after={
-            <select
-              aria-label="Translate messages into"
-              disabled={!translationSupported}
+            <SettingsSelect
               value={selectedTargetLang}
-              onChange={(e) => setTranslateTargetLang(e.target.value)}
-              style={pickerInputStyle(color, config)}
-            >
-              {TRANSLATE_TARGET_LANGUAGES.map((l) => (
-                <option key={l.code} value={l.code}>
-                  {l.name}
-                </option>
-              ))}
-            </select>
+              onChange={(v) => setTranslateTargetLang(v)}
+              disabled={!translationSupported}
+              aria-label="Translate messages into"
+              options={TRANSLATE_TARGET_LANGUAGES.map((l) => ({ value: l.code, label: l.name }))}
+            />
           }
         />
         {translationSupported && (