Fix the claims page's mismatched control heights, and separate approve/reject

Two things, found together while looking at the row of controls under each
pending claim.

The child dropdown stood taller than the btn-sm/input-sm around it because
ClaimReviewForm.child hardcoded its own class="select select-bordered w-full"
on the widget. templatetags/field.html's select branch already builds the
full class list itself (base classes + the size modifier), so the widget's
own class rendered as a second, non-merging class="..." attribute right next
to the generated one -- select-sm was in the markup, just shadowed by a
duplicate attribute the browser never applied. No other Select field in the
app hardcodes a class this way, which is why nothing else had the problem.
Fixed by dropping it and passing size="small" through {% form_field %}
instead, the same way every other compact inline select in the app does.

Also pulled Approve and Reject apart with justify-between rather than letting
both sit in one flex-wrap run, so they stay on opposite sides of the row
(and don't end up adjacent on a wrap) rather than one stray click apart.

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

management/tests.py

@@ -1454,6 +1454,22 @@ class ParentClaimViewTests(ManagementTestBase):
         self.assertContains(response, "taylor.doe@example.com")
         self.assertContains(response, "Jamie Doe")
 
+    def test_the_child_dropdown_matches_the_height_of_the_buttons_beside_it(self):
+        # Regression: ClaimReviewForm.child used to hardcode its own class=
+        # attrs, which rendered a second class="..." on the <select> alongside
+        # the one templatetags/field.html builds (including the size modifier)
+        # -- the two never merge, so select-sm silently never reached the page
+        # and the dropdown stood taller than the btn-sm/input-sm around it.
+        self.submit()
+        self.client.force_login(self.admin_user)
+
+        response = self.club_get("parent_claim_list")
+
+        self.assertContains(response, "select-sm")
+        html = response.content.decode()
+        select_tag = html[html.index("<select") : html.index(">", html.index("<select"))]
+        self.assertEqual(select_tag.count('class="'), 1)
+
     def test_approving_links_the_parent_as_a_guardian(self):
         self.submit()
         claim = ParentClaim.objects.get(club=self.club)