Fix kapa modal on mobile (#237)

Before:

![image](https://github.com/user-attachments/assets/83d0716c-8b64-4b35-bbfd-88ff208d673a)

After:

![image](https://github.com/user-attachments/assets/3979cf31-5492-4985-b739-1c6a300b9ff6)

src/partials/head-scripts.hbs

@@ -14,6 +14,9 @@
     src="https://widget.kapa.ai/kapa-widget.bundle.js"
     data-website-id="{{this}}"
     data-project-name="Hazelcast"
+    data-project-color="#000000"
+    data-project-logo="/_/img/kapa/kapa-logo.png"
+    data-modal-z-index="10001"
     data-modal-title="Ask AI"
     data-modal-header-bg-color="#71808A"
     data-modal-title-color="#fff"
@@ -23,10 +26,8 @@
     data-modal-title-font-family="PP Telegraf"
     data-modal-title-font-size="30px"
     data-modal-title-font-weight="400"
-    data-project-color="#000000"
     data-modal-disclaimer="This is an experimental custom LLM for answering technical questions about Hazelcast. Answers are based **only** on Hazelcast documentation and support sources, but may not be fully accurate so please use your best judgement. Don't forget to rate the answers and give feedback!"
     data-modal-example-questions="How do I get started using Kubernetes with Hazelcast?,What are the benefits of Enterprise Edition?"
-    data-project-logo="/_/img/kapa/kapa-logo.png"
     data-button-image-width="40"
     data-button-image-height="40"
     data-button-border="1px solid #AFE922"