Fix scrambled mobile layout on member detail and sweep the rest of the app

The mobile responsive pass still had real gaps: on member_detail.html,
dt/dd label-value rows (phone numbers, dates) squeezed onto one line
below `sm` instead of stacking, and guardian call/emergency-call
buttons -- whose labels embed the guardian's name -- used a bare
`grow` inside a non-wrapping flex row, pushing the whole row off
screen once a name was long enough. Both patterns are fixed here and
propagated to every other page with the same shape of bug:
event_detail.html and event_series_detail.html still had the
unmigrated dt/dd rows from before the first pass; sponsor_list.html's
URLs and parent_claim_list.html's emails could force a table-card
wider than the viewport (unbreakable strings, fixed with break-all);
parent_claim_list.html's Approve/Reject buttons could both land on
the left edge once the row wrapped (fixed with ms-auto); news_list.html's
team-badge list and news_detail.html's per-photo action buttons were
missing flex-wrap; team_detail.html had a stray table never converted
to table-cards and two unstacked stat lists; referee_management.html's
per-game referee badges were missing flex-wrap.

Also hide the three dashboard charts (signups, fee status, renewal
rate) below `lg` -- three squeezed canvases stacked on a phone added
scroll without adding readability the stat cards above don't already
give, and match family_list.html's search box to member_list.html's
icon-only-below-`sm` pattern.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

management/templates/management/news_detail.html

@@ -68,7 +68,7 @@
                             <span class="badge badge-success badge-sm absolute top-1 left-1">{% trans "Main" %}</span>
                         {% endif %}
                         {% if can_edit %}
-                            <div class="flex gap-1 mt-1">
+                            <div class="flex flex-wrap gap-1 mt-1">
                                 {% if not photo.is_main %}
                                     <form method="post" action="{% url 'management:news_photo_set_main' news_item.pk photo.pk %}">
                                         {% csrf_token %}