i18n correcctions based on feedback. Added even more missing i18n strings.

frontend/src/app/components/latest-blocks/latest-blocks.component.html

@@ -10,7 +10,7 @@
       <th class="d-none d-md-block" style="width: 20%;" i18n="latest-blocks.timestamp">Timestamp</th>
       <th style="width: 20%;" i18n="latest-blocks.mined">Mined</th>
       <th class="d-none d-lg-block" style="width: 15%;" i18n="latest-blocks.transactions">Transactions</th>
-      <th style="width: 20%;" i18n="latest-blocks.filled">Filled</th>
+      <th style="width: 20%;" i18n="latest-blocks.size">Size</th>
     </thead>
     <tbody>
       <tr *ngFor="let block of blocks; let i= index; trackBy: trackByBlock">