Ptt: set space as default key

Change-Id: I7944a40d622ee9092686ce32c99ce94c4be1cdb1

src/app/appsettingsmanager.h

@@ -68,7 +68,7 @@ extern const QString defaultDownloadPath;
     X(IsDonationVisible, true) \
     X(Donation2023EndDate, "2024-01-31 00:00") \
     X(EnablePtt, false) \
-    X(pttKey, 36)
+    X(PttKeys, 32)
 /*
  * A class to expose settings keys in both c++ and QML.
  * Note: this is using a non-constructable class instead of a

src/app/pttlistener.h

@@ -13,7 +13,7 @@ class PTTListener : public QObject
 public:
     Q_INVOKABLE Qt::Key getCurrentKey()
     {
-        int keyInt = settingsManager_->getValue(Settings::Key::pttKey).toInt();
+        int keyInt = settingsManager_->getValue(Settings::Key::PttKeys).toInt();
         Qt::Key key = static_cast<Qt::Key>(keyInt);
         return key;
     }
@@ -25,7 +25,7 @@ public:
 
     Q_INVOKABLE void setPttKey(Qt::Key key)
     {
-        settingsManager_->setValue(Settings::Key::pttKey, key);
+        settingsManager_->setValue(Settings::Key::PttKeys, key);
     }
     Q_INVOKABLE bool getPttState()
     {