market order validity fix

src/components/chart/ChartOrder.vue

@@ -79,7 +79,7 @@ function build(order, component, options={}) {
 
 // check order validity
 watchEffect(()=>{
-  let valid = props.order.amount
+  let valid = props.order.amount > 0
   if (valid) {
     for (const builder of builders.value) {
       if (!builder.valid) {

src/components/chart/ChartPlaceOrder.vue

@@ -38,7 +38,7 @@ import {useTheme} from "vuetify";
 import {pendOrder} from "@/blockchain/wallet.js";
 import ToolbarPane from "@/components/chart/ToolbarPane.vue";
 import NeedsChart from "@/components/NeedsChart.vue";
-import router from "@/router/index.js";
+import {nav} from "@/misc.js";
 
 const s = useStore()
 const co = useChartOrderStore()