components: FullScreenPicker uses the pinned bar

Completes the picker upstream: FullScreenPicker now passes largeTopBar=false
to CollapsingScaffold, so the family's selection pickers sit under a pinned
single-line bar instead of a tall collapsing header (the short list has nothing
to scroll past). Matches Calendula's scrollable-picker fix; applies family-wide.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -39,7 +39,9 @@ are no binary releases; "version" tracks the shared `version` in the root build
   - `OptionCard` — the sanctioned selection-dialog pick.
   - `CollapsingScaffold` — the collapsing settings/sub-screen scaffold; set
     `largeTopBar = false` for a pinned single-line bar (the picker variant).
-  - `FullScreenPicker` / `OptionPicker` — the full-screen single-select picker.
+  - `FullScreenPicker` / `OptionPicker` — the full-screen single-select picker,
+    now over a pinned single-line bar (a picker is a short list, so no tall
+    collapsing header to scroll past).
   - `ReorderableColumn` — dependency-free drag-to-reorder for the short, fixed
     grouped-card Settings lists; pairs with `GroupedRow(gapBelow = false)`, which
     hands the column uniform control of row spacing.

components/src/main/kotlin/de/jeanlucmakiola/floret/components/OptionPicker.kt

@@ -15,9 +15,10 @@ import androidx.compose.ui.window.DialogWindowProvider
 
 /**
  * Full-screen scaffold for selection pickers: a full-bleed [Dialog] that reuses
- * [CollapsingScaffold] (collapsing title + back), so a picker is visually
+ * [CollapsingScaffold] with a pinned single-line bar, so a picker uses the full
- * identical to a settings sub-page and uses the full width. [content] places the
+ * width without a tall header — it's a short selection list, so the large
- * connected grouped rows; selecting one calls [onDismiss].
+ * collapsing header would only be empty space to scroll past. [content] places
+ * the connected grouped rows; selecting one calls [onDismiss].
  */
 @Composable
 fun FullScreenPicker(
@@ -45,6 +46,7 @@ fun FullScreenPicker(
         CollapsingScaffold(
             title = title,
             onBack = onDismiss,
+            largeTopBar = false,
             predictiveBack = predictiveBack,
             content = content,
         )