Added New Dark Themes for Low Spec PC and added GPU Detection

functions/private/Invoke-WinUtilGPU.ps1

@@ -0,0 +1,29 @@
+function Invoke-GPUCheck {
+    $gpuInfo = Get-WmiObject Win32_VideoController
+    
+    foreach ($gpu in $gpuInfo) {
+        $gpuName = $gpu.Name
+        if ($gpuName -like "*NVIDIA*") {
+            return $true  # NVIDIA GPU found
+        }
+    }
+
+    foreach ($gpu in $gpuInfo) {
+        $gpuName = $gpu.Name
+        if ($gpuName -like "*AMD Radeon RX*") {
+            return $true # AMD GPU Found 
+        }
+    }
+    foreach ($gpu in $gpuInfo) {
+        $gpuName = $gpu.Name
+        if ($gpuName -like "*UHD*") {
+            return $false # Intel Intergrated GPU Found 
+        }
+    }
+    foreach ($gpu in $gpuInfo) {
+        $gpuName = $gpu.Name
+        if ($gpuName -like "*AMD Radeon(TM)*") {
+            return $false # AMD Intergrated GPU Found 
+        }
+    }
+}