Generic fixes (#1304)

* fix mobx no element error

* fix mobx issue

* Remove unused code

* Enhance error handling for monero sync failure case

* Separate litecoin mnemonic exception from bitcoin

* - Enable onramper for polygon
- Add Kaspa validation

* Set null as the default length of address validation

* Modify EVM fee text [skip ci]

* Add seed length option to polygon

* Add digibyte

* Update configure_cake_wallet.sh and fix conflicts

* Pin bottom section

* Fix Solana missing isTestnet param

lib/src/widgets/scollable_with_bottom_section.dart

@@ -14,37 +14,28 @@ class ScrollableWithBottomSection extends StatefulWidget {
   final EdgeInsets? bottomSectionPadding;
 
   @override
-  ScrollableWithBottomSectionState createState() =>
-      ScrollableWithBottomSectionState();
+  ScrollableWithBottomSectionState createState() => ScrollableWithBottomSectionState();
 }
 
-class ScrollableWithBottomSectionState
-    extends State<ScrollableWithBottomSection> {
+class ScrollableWithBottomSectionState extends State<ScrollableWithBottomSection> {
   @override
   Widget build(BuildContext context) {
-    return LayoutBuilder(builder: (context, constraints) {
-      return SingleChildScrollView(
-        // physics:
-        //     const AlwaysScrollableScrollPhysics(), //  const NeverScrollableScrollPhysics(), //
-        child: ConstrainedBox(
-          constraints: BoxConstraints(
-              minHeight: constraints.heightConstraints().maxHeight),
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.spaceBetween,
-            children: <Widget>[
-              Padding(
-                padding: widget.contentPadding ??
-                    EdgeInsets.only(left: 20, right: 20),
-                child: widget.content,
-              ),
-              Padding(
-                  padding: widget.bottomSectionPadding ??
-                      EdgeInsets.only(bottom: 20, right: 20, left: 20),
-                  child: widget.bottomSection)
-            ],
+    return Column(
+      children: [
+        Expanded(
+          child: SingleChildScrollView(
+            child: Padding(
+              padding: widget.contentPadding ?? EdgeInsets.only(left: 20, right: 20),
+              child: widget.content,
+            ),
           ),
         ),
-      );
-    });
+        Padding(
+          padding: widget.bottomSectionPadding?.copyWith(top: 10) ??
+              EdgeInsets.only(top: 10, bottom: 20, right: 20, left: 20),
+          child: widget.bottomSection,
+        ),
+      ],
+    );
   }
 }