fix(#1337): number of records in the overall annotated coverage (#1338)

This PR fixes weak supervision overall annotated coverage metric

Closes #1337

(cherry picked from commit 6024639)

frontend/components/text-classifier/labeling-rules/RulesMetrics.vue

@@ -120,7 +120,7 @@ export default {
             )} <span class="records-number">(${this.$options.filters.formatNumber(
               Math.round(
                 this.metricsTotal.coverage_annotated *
-                  this.dataset.globalResults.total
+                  this.metricsTotal.annotated_records
               ) || 0
             )} records)</span>`,
           },