Add version info and about summary

Mainspring/resource.rc

@@ -2,6 +2,7 @@
 #include "windows.h"
 #include "winres.h"
 #include "src/resources.h"
+#include "version.h"
 
 IDI_ICONMAIN ICON "res/mainspring.ico"
 
@@ -40,3 +41,22 @@ BEGIN
     "S",    ID_FILE_SAVEAS, CONTROL, SHIFT, VIRTKEY
     "O",    ID_FILE_OPEN,   CONTROL, VIRTKEY
 END
+
+VS_VERSION_INFO VERSIONINFO
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "CompanyName", "Grayson Riffe"
+            VALUE "FileDescription", "Mainspring"
+            VALUE "ProductName", "Mainspring - A simple timekeeper"
+            VALUE "ProductVersion", APPVERSION
+            VALUE "LegalCopyright", "Copyright (C) 2025"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
+END

Mainspring/src/Application.cpp

@@ -115,7 +115,10 @@ namespace mainspring {
                     }
 
                     case ID_HELP_ABOUT:
-                        MessageBox(dlg, std::format("{} {}\nCopyright Grayson Riffe 2025\ngraysonriffe.com", app->m_appName, app->m_appVersion).c_str(), std::format("About {}", app->m_appName).c_str(), MB_OK);
+                        MessageBox(dlg, std::format("{} {}\nCopyright Grayson Riffe 2025\ngraysonriffe.com\n\n"
+                            "\tMainspring is a simple timekeeper. It can be used as a simple stopwatch for short-term activities, or "
+                            "it can log hours on a longer-term project. Times can be saved to a file, and any subsequent uses will autosave to that file. The most recent "
+                            "time will be loaded when Mainspring starts.", app->m_appName, app->m_appVersion).c_str(), std::format("About {}", app->m_appName).c_str(), MB_OK);
                         return TRUE;
                 }