fix(ui): use the full page width and fit phone screens

The page no longer caps its width. On very wide screens the attention list shows two columns of projects.

On phones the header, the health strip and the filter chips wrap or scroll inside their own box, and each item shows its age under the text. The side panel scrolls on its own.

src/components/ProjectList.vue

@@ -26,7 +26,10 @@ const LABEL = { crit: 'Critical', warn: 'Warning', ok: 'Healthy' } as const
     >
       No projects match the search.
     </p>
-    <ul v-else class="border-border bg-surface divide-border divide-y rounded-lg border">
+    <ul
+      v-else
+      class="border-border bg-surface divide-border max-h-[70vh] divide-y overflow-y-auto rounded-lg border lg:max-h-[calc(100vh-7rem)]"
+    >
       <li
         v-for="repo in repos"
         :key="repo.fullName"