[AB-333] providing some dates as separate instants instead of relying on the member attributes

truncating date to day when displaying the date for export emote stats
fixing wrong message when confirming a command and adding missing exception handling

abstracto-application/abstracto-modules/moderation/moderation-impl/src/main/java/dev/sheldan/abstracto/moderation/service/MuteServiceBean.java

@@ -313,13 +313,16 @@ public class MuteServiceBean implements MuteService {
                         finalFuture.complete(null)
                 ).exceptionally(throwable1 -> {
                     log.error("Unmute log failed to send for mute {} in server {}.", muteId, serverId, throwable1);
-                    finalFuture.complete(null);
+                    finalFuture.completeExceptionally(null);
                     return null;
                 });
             } else {
                 finalFuture.complete(null);
             }
             return null;
+        }).exceptionally(throwable -> {
+            finalFuture.completeExceptionally(throwable);
+            return null;
         });
 
         return finalFuture;

abstracto-application/abstracto-modules/moderation/moderation-impl/src/main/java/dev/sheldan/abstracto/moderation/service/WarnServiceBean.java

@@ -269,6 +269,9 @@ public class WarnServiceBean implements WarnService {
                 return null;
             });
             return null;
+        }).exceptionally(throwable -> {
+            sendingFuture.completeExceptionally(throwable);
+            return null;
         });
 
         return sendingFuture;