Theme (Windows): moves Windows theme detection logic from DE to dedicated module

Like the last commit

CMakeLists.txt

@@ -1044,7 +1044,7 @@ elseif(WIN32)
         src/detection/terminalfont/terminalfont_windows.c
         src/detection/terminalshell/terminalshell_windows.c
         src/detection/terminalsize/terminalsize_windows.c
-        src/detection/theme/theme_nosupport.c
+        src/detection/theme/theme_windows.c
         src/detection/tpm/tpm_windows.c
         src/detection/uptime/uptime_windows.c
         src/detection/users/users_windows.c

src/detection/displayserver/displayserver_windows.c

@@ -254,27 +254,4 @@ void ffConnectDisplayServerImpl(FFDisplayServerResult* ds)
     }
 
     detectDisplays(ds);
-
-    //https://github.com/hykilpikonna/hyfetch/blob/master/neofetch#L2067
-    const FFOSResult* os = ffDetectOS();
-    uint32_t ver = (uint32_t) ffStrbufToUInt(&os->version, 0);
-    if (ver > 1000)
-    {
-        // Windows Server
-        if (ver >= 2016)
-            ffStrbufSetStatic(&ds->dePrettyName, "Fluent");
-        else if (ver >= 2012)
-            ffStrbufSetStatic(&ds->dePrettyName, "Metro");
-        else
-            ffStrbufSetStatic(&ds->dePrettyName, "Aero");
-    }
-    else
-    {
-        if (ver >= 10)
-            ffStrbufSetStatic(&ds->dePrettyName, "Fluent");
-        else if (ver >= 8)
-            ffStrbufSetStatic(&ds->dePrettyName, "Metro");
-        else
-            ffStrbufSetStatic(&ds->dePrettyName, "Aero");
-    }
 }

src/detection/theme/theme_windows.c

@@ -0,0 +1,29 @@
+#include "theme.h"
+
+#include "detection/os/os.h"
+
+const char* ffDetectTheme(FFThemeResult* result)
+{
+    const FFOSResult* os = ffDetectOS();
+    uint32_t ver = (uint32_t) ffStrbufToUInt(&os->version, 0);
+    if (ver > 1000)
+    {
+        // Windows Server
+        if (ver >= 2016)
+            ffStrbufSetStatic(&result->theme1, "Fluent");
+        else if (ver >= 2012)
+            ffStrbufSetStatic(&result->theme1, "Metro");
+        else
+            ffStrbufSetStatic(&result->theme1, "Aero");
+    }
+    else
+    {
+        if (ver >= 10)
+            ffStrbufSetStatic(&result->theme1, "Fluent");
+        else if (ver >= 8)
+            ffStrbufSetStatic(&result->theme1, "Metro");
+        else
+            ffStrbufSetStatic(&result->theme1, "Aero");
+    }
+    return NULL;
+}