Fix 0 balance button to small

qortal-ui-plugins/plugins/core/wallet/wallet-app.src.js

@@ -1747,7 +1747,7 @@ class MultiWallet extends LitElement {
                         parentEpml.request('showSnackBar', `Failed to Fetch QORT Balance. Try again!`)
                     } else {
                         if (this._selectedWallet == coin) {
-                            this.wallets.get(coin).balance = res
+                            this.wallets.get(coin).balance = Number(res).toFixed(8)
                             this.balanceString = this.wallets.get(this._selectedWallet).balance + " " + this._selectedWallet.toLocaleUpperCase()
                             this.balance = this.wallets.get(this._selectedWallet).balance
                         }