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

.gitignore

@@ -86,6 +86,7 @@ cw_monero/cw_monero/android/.cxx/
 **/*.g.dart
 
 android/key.properties
+android/app/key.jks
 
 **/tool/.secrets-prod.json
 **/tool/.secrets-test.json