Fix ESLint errors

app/components/proposal-list/component.js

@@ -9,7 +9,7 @@ export default Component.extend({
 
     confirm(proposalId) {
       if (this.contractInteractionEnabled) {
-        this.sendAction('confirmAction', proposalId);
+        this.confirmProposal(proposalId);
       } else {
         window.alert('Only members can vote on proposals. Please ask someone to set you up.');
       }

app/templates/index.hbs

@@ -32,7 +32,7 @@
     <div class="content">
       {{!-- TODO: We need a better naming for kredits.hasAccounts --}}
       {{proposal-list proposals=proposalsOpenSorted
-                      confirmAction="confirmProposal"
+                      confirmProposal=(action "confirmProposal")
                       contractInteractionEnabled=kredits.hasAccounts}}
 
       {{!-- TODO: We need a better naming --}}
@@ -51,7 +51,7 @@
   </header>
   <div class="content">
     {{proposal-list proposals=proposalsClosedSorted
-                    confirmAction="confirmProposal"}}
+                    confirmProposal=(action "confirmProposal")}}
 
     {{!-- TODO: We need a better naming --}}
     {{#if kredits.hasAccounts}}