updates to display ratio of analytics charts and tiles

lib/pangea/pages/analytics/bar_chart_card.dart

@@ -33,13 +33,12 @@ class BarChartCard extends StatelessWidget {
               style: Theme.of(context).textTheme.bodyMedium,
             ),
             const SizedBox(height: 14),
-            AspectRatio(
-              aspectRatio: 2,
-              child: loadingData
+            Expanded(
+              child: loadingData || barChart == null
                   ? const Center(
                       child: CircularProgressIndicator(),
                     )
-                  : barChart,
+                  : barChart!,
             ),
             const SizedBox(height: 10),
             legend,

lib/pangea/pages/analytics/base_analytics_page.dart

@@ -197,8 +197,12 @@ class BaseAnalyticsView extends StatelessWidget {
         withScrolling: false,
         child: Column(
           children: [
-            chartView(context),
             Expanded(
+              flex: 1,
+              child: chartView(context),
+            ),
+            Expanded(
+              flex: 1,
               child: DefaultTabController(
                 length: 2,
                 child: Column(

lib/pangea/pages/analytics/construct_list.dart

@@ -154,19 +154,16 @@ class ConstructListView extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     if (!init) {
-      return const SizedBox(
-        height: 400,
+      return const Expanded(
         child: Center(child: CircularProgressIndicator()),
       );
     }
     if (constructs.isEmpty) {
-      return SizedBox(
-        height: 400,
+      return Expanded(
         child: Center(child: Text(L10n.of(context)!.noDataFound)),
       );
     }
-    return SizedBox(
-      height: 400,
+    return Expanded(
       child: ListView.builder(
         itemCount: constructs.length,
         itemBuilder: (context, index) {