fix: show live GPU/resolution info in System Information

- desktop: Resolution/Graphics fields now read from video frontbuffer
  and gpu.activeDriverName instead of static multiboot/hardcoded values
- gpu: markAvailable sets ActiveName when no driver is active yet, so
  the initial VBE boot driver is reported before any setMode call
- kernel: whitespace cleanup

src/driver/video/desktop.pas

@@ -300,12 +300,12 @@ begin
     addInfoRow(content, cw, 'CPU Clock', clk_str);
     mem_str := stringConcat(intToString(((multibootinfo^.mem_upper + 1000) div 1024) + 1), ' MB');
     addInfoRow(content, cw, 'Memory', mem_str);
-    res_str := stringConcat(intToString(multibootinfo^.framebuffer_width), 'x');
-    res_str := stringConcat(res_str, intToString(multibootinfo^.framebuffer_height));
+    res_str := stringConcat(intToString(video.frontBufferWidth), 'x');
+    res_str := stringConcat(res_str, intToString(video.frontBufferHeight));
     res_str := stringConcat(res_str, 'x');
-    res_str := stringConcat(res_str, intToString(multibootinfo^.framebuffer_bpp));
+    res_str := stringConcat(res_str, intToString(video.frontBufferBpp));
     addInfoRow(content, cw, 'Resolution', res_str);
-    addInfoRow(content, cw, 'Graphics', 'VESA VBE');
+    addInfoRow(content, cw, 'Graphics', gpu.activeDriverName);
 
     addSeparator(content, cw);
 

src/driver/video/gpu.pas

@@ -138,6 +138,9 @@ begin
     for i := 0 to DriverCount - 1 do begin
         if strings.stringEquals(Drivers[i].Name, name) then begin
             Drivers[i].Available := true;
+            { If no driver is active yet, default to this one }
+            if ActiveName = nil then
+                ActiveName := name;
             syslog.log('GPU', 'Driver now available: ');
             syslog.writestringln(name);
             pop_trace;