added save/restore history

pws2mqtt-qt.pro

@@ -14,10 +14,10 @@ CONFIG -= app_bundle
 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
 SOURCES += \
-src/main.cpp \
-src/mqtt.cpp \
-src/pws2mqtt.cpp \
-src/utcicalculator.cpp
+    src/main.cpp \
+    src/mqtt.cpp \
+    src/pws2mqtt.cpp \
+    src/utcicalculator.cpp
 
 # Default rules for deployment.
 qnx: target.path = /tmp/$${TARGET}/bin
@@ -25,10 +25,10 @@ else: unix:!android: target.path = /opt/$${TARGET}/bin
 !isEmpty(target.path): INSTALLS += target
 
 HEADERS += \
-src/barometertrend.h \
-src/httpserver.h \
-src/mqtt.h \
-src/pws2mqtt.h \
-src/utcicalculator.h \
-src/version.h
+    src/barometertrend.h \
+    src/httpserver.h \
+    src/mqtt.h \
+    src/pws2mqtt.h \
+    src/utcicalculator.h \
+    src/version.h