feat(colophon): credit three more readers for ideas

u/lotus_lunaris, u/Neoragex13 and u/ShiroWaffles, on the same terms as the
two already there — thanks for ideas, carrying no licence obligation.

Five entries is where the line starts wrapping on a narrow screen, which is
what the existing comma-and-"and" join was written for, so nothing else had
to change.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

src/client/components/Colophon.tsx

@@ -67,6 +67,18 @@ export const IDEA_CREDITS = [
     handle: "u/eriatilox",
     url: "https://www.reddit.com/user/eriatilox/",
   },
+  {
+    handle: "u/lotus_lunaris",
+    url: "https://www.reddit.com/user/lotus_lunaris/",
+  },
+  {
+    handle: "u/Neoragex13",
+    url: "https://www.reddit.com/user/Neoragex13/",
+  },
+  {
+    handle: "u/ShiroWaffles",
+    url: "https://www.reddit.com/user/ShiroWaffles/",
+  },
 ] as const;
 
 /**