Add combined model plot to Docs (#16669)

Signed-off-by: UltralyticsAssistant <web@ultralytics.com>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>
Co-authored-by: RizwanMunawar <chr043416@gmail.com>
Co-authored-by: Ultralytics Assistant <135830346+UltralyticsAssistant@users.noreply.github.com>

docs/en/models/index.md

@@ -8,6 +8,8 @@ keywords: Ultralytics, supported models, YOLOv3, YOLOv4, YOLOv5, YOLOv6, YOLOv7,
 
 Welcome to Ultralytics' model documentation! We offer support for a wide range of models, each tailored to specific tasks like [object detection](../tasks/detect.md), [instance segmentation](../tasks/segment.md), [image classification](../tasks/classify.md), [pose estimation](../tasks/pose.md), and [multi-object tracking](../modes/track.md). If you're interested in contributing your model architecture to Ultralytics, check out our [Contributing Guide](../help/contributing.md).
 
+![Ultralytics YOLO11 Comparison Plots](https://github.com/user-attachments/assets/a311a4ed-bbf2-43b5-8012-5f183a28a845)
+
 ## Featured Models
 
 Here are some of the key models supported:

docs/overrides/javascript/extra.js

@@ -90,7 +90,7 @@ document.addEventListener("DOMContentLoaded", () => {
       },
       properties: {
         chatButtonType: "PILL",
-        fixedPositionYOffset: "2rem",
+        fixedPositionYOffset: "3rem",
         chatButtonBgColor: "#F3F3F3",
         baseSettings: {
           apiKey: "13dfec2e75982bc9bae3199a08e13b86b5fbacd64e9b2f89", // required