Adding unfairly cheap for very low fee transactions.

frontend/src/app/components/transaction/transaction.component.html

@@ -59,6 +59,7 @@
                     <td>
                       {{ tx.fee / (tx.weight / 4) | number : '1.1-1' }} sats/vB
                       &nbsp;
+                      <span *ngIf="feeRating === 0" class="badge badge-success">Unfairly cheap</span>
                       <span *ngIf="feeRating === 1" class="badge badge-success">Optimal</span>
                       <span *ngIf="feeRating === 2" class="badge badge-warning" title="Only ~{{ medianFeeNeeded }} sat/vB was needed to get into this block">Overpaid {{ overpaidTimes }}x</span>
                       <span *ngIf="feeRating === 3" class="badge badge-danger" title="Only ~{{ medianFeeNeeded }} sat/vB was needed to get into this block">Overpaid {{ overpaidTimes }}x</span>