Add pop-out button for chat window

src/qpcommon/pages/ChatPage.tsx

@@ -374,8 +374,47 @@ const ChatPage: FunctionComponent<ChatPageProps> = ({
               + New Chat
             </button>
           </div>
-          <a
-            href="https://github.com/magland/qp"
+          <div style={{ display: "flex", alignItems: "center", gap: "8px" }}>
+            <button
+              onClick={() => {
+                // Open the current page in a new popup window
+                window.open(
+                  window.location.href,
+                  "_blank",
+                  "width=500,height=700,menubar=no,toolbar=no,location=no,status=no,noopener,noreferrer"
+                );
+              }}
+              title="Open chat in new window"
+              style={{
+                background: "none",
+                border: "none",
+                cursor: "pointer",
+                padding: "4px",
+                display: "flex",
+                alignItems: "center",
+                opacity: 0.6,
+                transition: "opacity 0.2s",
+              }}
+              onMouseEnter={(e) => (e.currentTarget.style.opacity = "1")}
+              onMouseLeave={(e) => (e.currentTarget.style.opacity = "0.6")}
+            >
+              <svg
+                height="20"
+                width="20"
+                viewBox="0 0 24 24"
+                fill="none"
+                stroke="currentColor"
+                strokeWidth="2"
+                strokeLinecap="round"
+                strokeLinejoin="round"
+              >
+                <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6" />
+                <polyline points="15 3 21 3 21 9" />
+                <line x1="10" y1="14" x2="21" y2="3" />
+              </svg>
+            </button>
+            <a
+              href="https://github.com/magland/qp"
             target="_blank"
             rel="noopener noreferrer"
             title="View source code and report issues"
@@ -401,6 +440,7 @@ const ChatPage: FunctionComponent<ChatPageProps> = ({
               <path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z" />
             </svg>
           </a>
+          </div>
         </div>
 
         <div className="conversation-area" ref={conversationRef}>