fix(web): notices, day numbers and «Responder» as tall as they are

@pi/ui gives every button a fixed height, side padding and a minimum
width. Three of ours, laid out by their own component, took it:
- a notice in the bell's panel stayed 40 px tall, so a two-line one ran
  over the next;
- a day number in the calendar became a 40 px pill that ran into the
  sprint bands under it (today's, coloured, showed it);
- «Responder» under a comment became a grey pill sitting on its line.
They keep their own box now, and «Responder» is a text link.

The home page shows my projects first, right under the greeting: what
most visits come to open.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/web/tracker/presenters/src/lib/ui/notifications-bell.ts

@@ -174,12 +174,17 @@ const ICON: Record<NotificationKind, string> = {
       display: grid;
       gap: 0.25rem;
     }
+    /* As tall as its text: past @pi/ui's global button look (a fixed
+       height that let a two-line notice run over the next one). */
     .ts-inbox__item {
       width: 100%;
+      height: auto !important;
+      min-width: 0 !important;
       display: flex;
       align-items: flex-start;
       gap: 0.75rem;
-      padding: 0.625rem 0.5rem;
+      padding: 0.625rem 0.5rem !important;
+      line-height: 1.35;
       border: 0;
       border-radius: 0.5rem;
       background: transparent;