Fix for UnspentCoinsInfo Hive Box. Add checkbox for fixed rates for exchange.

lib/main.dart

@@ -109,8 +109,11 @@ Future<void> main() async {
     final templates = await Hive.openBox<Template>(Template.boxName);
     final exchangeTemplates =
         await Hive.openBox<ExchangeTemplate>(ExchangeTemplate.boxName);
-    final unspentCoinsInfoSource =
-      await Hive.openBox<UnspentCoinsInfo>(UnspentCoinsInfo.boxName);
+    Box<UnspentCoinsInfo> unspentCoinsInfoSource;
+    
+    if (!isMoneroOnly) {
+      unspentCoinsInfoSource = await Hive.openBox<UnspentCoinsInfo>(UnspentCoinsInfo.boxName);
+    }
     
     await initialSetup(
         sharedPreferences: await SharedPreferences.getInstance(),

lib/src/screens/exchange/exchange_page.dart

@@ -314,7 +314,7 @@ class ExchangePage extends BasePage {
                         ],
                       ),
                     ),
-                    /*if (exchangeViewModel.isReceiveAmountEditable) Padding(
+                    Padding(
                         padding: EdgeInsets.only(top: 12, left: 24),
                         child: Row(
                           mainAxisAlignment: MainAxisAlignment.start,
@@ -328,7 +328,7 @@ class ExchangePage extends BasePage {
                             ),
                           ],
                         )
-                    ),*/
+                    ),
                     Padding(
                       padding: EdgeInsets.only(top: 30, left: 24, bottom: 24),
                       child: Row(