Add chart for int responses

ui/src/components/CorrectionPieChart.svelte

@@ -17,7 +17,7 @@
              proposal_idx[proposal.id] = new String(data.labels.length - 1);
          }
 
-         req_responses = refreshResponses();
+         req_responses = question.getResponses();
          req_responses.then((responses) => {
              for (const res of responses) {
                  data.datasets[0].values[proposal_idx[res.value]] += 1;
@@ -27,9 +27,27 @@
 
      return req;
  }
- let req_proposals = refreshProposals();
+ let req_proposals = null;
  let req_responses = null;
 
+ if (question.kind == "int") {
+     req_responses = question.getResponses();
+     req_responses.then((responses) => {
+         const proposal_idx = { };
+         for (const res of responses) {
+             if (proposal_idx[res.value]) {
+                 data.datasets[0].values[proposal_idx[res.value]] += 1;
+             } else {
+                 data.labels.push(res.value);
+                 data.datasets[0].values.push(1);
+                 proposal_idx[res.value] = new String(data.labels.length - 1);
+             }
+         }
+     });
+ } else {
+     req_proposals = refreshProposals();
+ }
+
  let data = {
      labels: [],
      datasets: [

ui/src/routes/surveys/[sid]/responses/[rid].svelte

@@ -108,7 +108,7 @@
                             {/if}
                         </button>
                     {/if}
-                    {#if question.kind == "ucq" || question.kind == "mcq"}
+                    {#if question.kind == "ucq" || question.kind == "mcq" || question.kind == "int"}
                         <button
                             type="button"
                             class="btn btn-sm float-end mx-1"