style show all four quick cards on one line at md+

Change from col-xl-3 to col-md-3 so desktop clients see a single row.

Commit
99fa712181e7ea880003d7e65668b251ce9849cc
Author
gpt-5.6-sol high <agent@openai.com>
Author date
Committer
gpt-5.6-sol high <agent@openai.com>
Committer date
roles/dashboard/templates/dashboard/index.html.ep
index 4ed56e7f..09be05ed 100644..100644
@@ -7,7 +7,7 @@
7 7 <section id="quick-readings" class="reading-quick-status mb-3" aria-label="Sensor reading quick status">
8 8 <div class="row g-2" data-reading-quick-list>
9 9 % for my $probe ($probes->@*) {
10 Removed: <div class="col-6 col-sm-6 col-xl-3">
10 Added: <div class="col-6 col-md-3">
11 11 <a class="reading-quick-link text-decoration-none text-body d-block h-100" href="/probes/<%= $probe->{key} %>">
12 12 <article
13 13 class="card h-100 reading-quick-item"