msglist [nfs]: More whitespace and formatting changes for ScrollToBottomButton

Author: sirpengi

lib/widgets/message_list.dart

@@ -195,11 +195,9 @@ class _MessageListState extends State<MessageList> {
                     Positioned(
                       bottom: 0,
                       right: 0,
-                      child: ScrollToBottomButton(scrollController: scrollController, visibleValue: _scrollToBottomVisibleValue),
-                    ),
-                  ]
-                ),
-              ))))));
+                      child: ScrollToBottomButton(
+                        scrollController: scrollController,
+                        visibleValue: _scrollToBottomVisibleValue))])))))));
   }
 
   Widget _buildListView(context) {
@@ -243,23 +241,26 @@ class ScrollToBottomButton extends StatelessWidget {
     // Calculate time necessary if we're capping speed at 8pixels/ms (== 8000pixels/s)
     final speedLimit = (distance / 8).ceil();
     final int durationMs = max(300, speedLimit);
-    scrollController.animateTo(0, duration: Duration(milliseconds: durationMs), curve: Curves.easeIn);
+    scrollController.animateTo(
+      0,
+      duration: Duration(milliseconds: durationMs),
+      curve: Curves.easeIn);
   }
 
   @override
   Widget build(BuildContext context) {
     return ValueListenableBuilder<bool>(
-        builder: (BuildContext context, bool value, Widget? child) {
-          return (value && child != null) ? child : const SizedBox.shrink();
-        },
-        valueListenable: visibleValue,
-        // TODO: fix hardcoded values for size and style here
-        child: IconButton(
-            tooltip: "Scroll to bottom",
-            icon: const Icon(Icons.expand_circle_down_rounded),
-            iconSize: 40,
-            color: const HSLColor.fromAHSL(0.5,240,0.96,0.68).toColor(),
-            onPressed: () => _navigateToBottom(context)));
+      builder: (BuildContext context, bool value, Widget? child) {
+        return (value && child != null) ? child : const SizedBox.shrink();
+      },
+      valueListenable: visibleValue,
+      // TODO: fix hardcoded values for size and style here
+      child: IconButton(
+        tooltip: "Scroll to bottom",
+        icon: const Icon(Icons.expand_circle_down_rounded),
+        iconSize: 40,
+        color: const HSLColor.fromAHSL(0.5,240,0.96,0.68).toColor(),
+        onPressed: () => _navigateToBottom(context)));
   }
 }