qt, refactor: Use member initializers in TransactionStatus

src/qt/transactionrecord.h

@@ -20,13 +20,7 @@ struct WalletTxStatus;
 
 /** UI model for transaction status. The transaction status is the part of a transaction that will change over time.
  */
-class TransactionStatus
-{
-public:
-    TransactionStatus() : countsForBalance(false), sortKey(""),
-                          matures_in(0), status(Unconfirmed), depth(0), open_for(0)
-    { }
-
+struct TransactionStatus {
     enum Status {
         Confirmed,          /**< Have 6 or more confirmations (normal tx) or fully mature (mined tx) **/
         /// Normal (sent/received) transactions
@@ -40,25 +34,25 @@ public:
     };
 
     /// Transaction counts towards available balance
-    bool countsForBalance;
+    bool countsForBalance{false};
     /// Sorting key based on status
     std::string sortKey;
 
     /** @name Generated (mined) transactions
        @{*/
-    int matures_in;
+    int matures_in{0};
     /**@}*/
 
     /** @name Reported status
        @{*/
-    Status status;
-    qint64 depth;
+    Status status{Unconfirmed};
+    qint64 depth{0};
     /**@}*/
 
     /** Current block hash (to know whether cached status is still valid) */
     uint256 m_cur_block_hash{};
 
-    bool needsUpdate;
+    bool needsUpdate{false};
 };
 
 /** UI model for a transaction. A core transaction can be represented by multiple UI transactions if it has