docs: Reorganize and expand ComfyUI image-generation docs

- Move all image-generation content into docs/image-generation-and-editing/
- Add ComfyUI image-editing instructions (Image Size, Steps, Image Prompt Generation)
- Explain how to set node IDs in Open WebUI
- Add example setups for Qwen and FLUX.1 models
- Fix broken links and tidy formatting

docs/tutorials/https/caddy.md

@@ -1,6 +1,6 @@
 ---
 sidebar_position: 202
-title: "🔒 HTTPS using Caddy"
+title: "🪄 HTTPS using Caddy"
 ---
 
 :::warning

docs/tutorials/https/haproxy.md

@@ -1,6 +1,6 @@
 ---
 sidebar_position: 201
-title: "🔒 HTTPS using HAProxy"
+title: "⚖️ HTTPS using HAProxy"
 ---
 
 :::warning

docs/tutorials/https/nginx.md

@@ -1,6 +1,6 @@
 ---
 sidebar_position: 200
-title: "🔒 HTTPS using Nginx"
+title: "🚀 HTTPS using Nginx"
 ---
 
 :::warning