Shrink title text to reduce truncation in header

Reduces the chat title font size from 16px to 14px to help it fit better
in the top left corner of the UI without getting cut off.

Also increases the title container max-width from 25% to 30% to provide
more space for longer titles.

Co-Authored-By: sketch <hello@sketch.dev>
diff --git a/webui/src/web-components/sketch-app-shell.ts b/webui/src/web-components/sketch-app-shell.ts
index b3f2d09..a4dfeee 100644
--- a/webui/src/web-components/sketch-app-shell.ts
+++ b/webui/src/web-components/sketch-app-shell.ts
@@ -178,7 +178,7 @@
       margin: 0;
       padding: 0;
       color: rgba(82, 82, 82, 0.85);
-      font-size: 16px;
+      font-size: 14px;
       font-weight: normal;
       font-style: italic;
       white-space: nowrap;
@@ -213,7 +213,7 @@
       white-space: nowrap;
       overflow: hidden;
       text-overflow: ellipsis;
-      max-width: 25%;
+      max-width: 30%;
       padding: 6px 0;
     }