Port evolution, Rare Candy, evolution stones and vitamins

Pokémon that levelled up evolve after a won battle, following
EvolveAfterBattle's checks over the ROM's evolution bytes, with the
evolution screen that B can stop and move learning outside battle. The pack
uses Rare Candy, stones (with ABLE/NOT ABLE labels) and vitamins, and its
pocket tabs now sit in their own row.

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

src/ui/styles.css

@@ -597,6 +597,23 @@ dialog h2 {
   margin: 0 0 6px;
   white-space: pre-line;
 }
+.pack-tabs {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: 4px;
+  margin-bottom: 8px;
+}
+.pack-tabs button {
+  padding: 4px;
+  font-size: 0.75rem;
+  color: var(--ink);
+  background: var(--cream-dark);
+  border: 3px double var(--ink);
+}
+.pack-tabs button[aria-pressed="true"] {
+  color: #fff;
+  background: var(--blue);
+}
 .mart-menu {
   display: grid;
   gap: 6px;