qt: Handle new added plurals in bitcoin_en.ts

This step was missed. See translation_process.md

Author: hebasto

src/qt/locale/bitcoin_en.ts

@@ -749,8 +749,8 @@ Signing is only possible with addresses of the type &apos;legacy&apos;.</source>
         <source>%n active connection(s) to Bitcoin network.</source>
         <extracomment>A substring of the tooltip.</extracomment>
         <translation type="unfinished">
-            <numerusform></numerusform>
-            <numerusform></numerusform>
+            <numerusform>%n active connection to Bitcoin network.</numerusform>
+            <numerusform>%n active connections to Bitcoin network.</numerusform>
         </translation>
     </message>
     <message>
@@ -1376,8 +1376,8 @@ Signing is only possible with addresses of the type &apos;legacy&apos;.</source>
         <source>(sufficient to restore backups %n day(s) old)</source>
         <extracomment>Explanatory text on the capability of the current prune target.</extracomment>
         <translation type="unfinished">
-            <numerusform></numerusform>
-            <numerusform></numerusform>
+            <numerusform>(sufficient to restore backups %n day old)</numerusform>
+            <numerusform>(sufficient to restore backups %n days old)</numerusform>
         </translation>
     </message>
     <message>