feat(components): let scrolling actions inherit the content inset

Pinned actions keep their own 24dp margin; scrolling ones sit inside the
content column, so the caller's inset decides how wide they run.

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

@@ -100,7 +100,13 @@ fun OnboardingScaffold(
         bottomBar = {
             // Pinned actions carry the navigation-bar inset themselves; scrolling
             // ones get it from the scaffold's own content padding.
-            if (!scrollingActions) ActionsColumn(insetBottom = true, content = actions)
+            if (!scrollingActions) {
+                ActionsColumn(
+                    horizontalPadding = OnboardingSpace.md,
+                    insetBottom = true,
+                    content = actions,
+                )
+            }
         },
     ) { innerPadding ->
         Column(
@@ -115,7 +121,15 @@ fun OnboardingScaffold(
             hero()
             Spacer(Modifier.height(OnboardingSpace.lg))
             body()
-            if (scrollingActions) ActionsColumn(insetBottom = false, content = actions)
+            // No inset of its own: scrolling actions sit inside the content
+            // column, so they line up with whatever is above them.
+            if (scrollingActions) {
+                ActionsColumn(
+                    horizontalPadding = 0.dp,
+                    insetBottom = false,
+                    content = actions,
+                )
+            }
             Spacer(Modifier.height(OnboardingSpace.md))
         }
     }
@@ -124,6 +138,7 @@ fun OnboardingScaffold(
 /** The call-to-action stack, wherever the shell has put it. */
 @Composable
 private fun ActionsColumn(
+    horizontalPadding: Dp,
     insetBottom: Boolean,
     content: @Composable ColumnScope.() -> Unit,
 ) {
@@ -131,7 +146,7 @@ private fun ActionsColumn(
         modifier = Modifier
             .fillMaxWidth()
             .then(if (insetBottom) Modifier.navigationBarsPadding() else Modifier)
-            .padding(horizontal = OnboardingSpace.md, vertical = OnboardingSpace.sm),
+            .padding(horizontal = horizontalPadding, vertical = OnboardingSpace.sm),
         horizontalAlignment = Alignment.CenterHorizontally,
         verticalArrangement = Arrangement.spacedBy(4.dp),
         content = content,