docs(reform): reformat the files with explanation

qt/main.cpp

@@ -1,14 +1,31 @@
-//main function of the application, responsible for starting the Qt application and 
+/*
-//creating an instance of the SnigdhaOSAssistant class.
+* main function of the application, responsible for starting the Qt application and 
+* creating an instance of the SnigdhaOSAssistant class.
+*/
 
 #include "snigdhaosassistant.h"
 
 #include <QApplication>
-
+/*
+* creates a QApplication object, which manages the GUI application's control flow and main settings.
+*/
 int main(int argc, char* argv[])
 {
     QApplication a(argc, argv);
+    /*
+    * creates an instance of the SnigdhaOSAssistant class named w. 
+    * it passes nullptr as the parent widget and either the second command line argument (argv[1]) 
+    * or an empty string as the initial state of the application.
+    */
     SnigdhaOSAssistant w(nullptr, a.arguments().length() > 1 ? a.arguments()[1] : "");
+    /*
+    * displays the main window of the application (w) on the screen.
+    */
     w.show();
+    /*
+    * starts the event loop of the application by calling the exec() function of the QApplication object (a). 
+    * the event loop waits for events to occur and dispatches them to event handlers. 
+    * the function will return when the application exits, typically after the main window is closed.
+    */
     return a.exec();
 }