feat(components): let a tinted grouped row name its content colour

GroupedRow's container had no `on*` pair, so a row given a tint kept its
text on onSurface — readable by luck rather than by the theme. Wanted by a
status row that colours itself by outcome.

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

@@ -127,9 +127,12 @@ fun GroupedSurface(
  * headline and summary to the M3 disabled emphasis while leaving the [trailing]
  * control at full opacity — for rows that are present but switched off.
  * [container] overrides the row's tonal colour (e.g. a category tint); ignored
- * when [selected]. [gapBelow] (see [GroupedSurface]) suppresses the inter-row
- * gap for a caller that owns its own uniform spacing, e.g. [ReorderableColumn].
- * [onLongClick] (see [GroupedSurface]) adds a long-press to the row.
+ * when [selected]. [contentColor] is its pair — the `on*` role for that
+ * container, so a tinted row keeps its contrast in both themes instead of
+ * leaving the text on `onSurface`. [gapBelow] (see [GroupedSurface]) suppresses
+ * the inter-row gap for a caller that owns its own uniform spacing, e.g.
+ * [ReorderableColumn]. [onLongClick] (see [GroupedSurface]) adds a long-press to
+ * the row.
  */
 @Composable
 fun GroupedRow(
@@ -140,6 +143,7 @@ fun GroupedRow(
     selected: Boolean = false,
     dimmed: Boolean = false,
     container: Color? = null,
+    contentColor: Color? = null,
     minHeight: Dp = 72.dp,
     gapBelow: Boolean = true,
     leading: @Composable (() -> Unit)? = null,
@@ -154,6 +158,7 @@ fun GroupedRow(
     selected = selected,
     dimmed = dimmed,
     container = container,
+    contentColor = contentColor,
     minHeight = minHeight,
     gapBelow = gapBelow,
     leading = leading,
@@ -177,6 +182,7 @@ fun GroupedRow(
     selected: Boolean = false,
     dimmed: Boolean = false,
     container: Color? = null,
+    contentColor: Color? = null,
     minHeight: Dp = 72.dp,
     gapBelow: Boolean = true,
     leading: @Composable (() -> Unit)? = null,
@@ -202,6 +208,14 @@ fun GroupedRow(
             leadingIconColor = muted,
             supportingColor = muted,
         )
+    } else if (contentColor != null) {
+        ListItemDefaults.colors(
+            containerColor = Color.Transparent,
+            headlineColor = contentColor,
+            leadingIconColor = contentColor,
+            supportingColor = contentColor,
+            trailingIconColor = contentColor,
+        )
     } else {
         ListItemDefaults.colors(containerColor = Color.Transparent)
     }