fix whats-new view to match ProCelebration sizing pattern, eliminating vault entry bleed-through

@@ -7928,14 +7928,18 @@79287928 79297929 /* ── What's new / breaking-changes screen (one-shot after unlock) ── */79307930 .peach-whats-new {7931-  position: absolute;7932-  inset: 0;7933-  display: flex;7934-  flex-direction: column;79357931   background:79367932     radial-gradient(120% 80% at 0% 0%, color-mix(in srgb, var(--peach-accent) 8%, transparent) 0%, transparent 65%),79377933     var(--peach-bg);7934+  border: 1px solid var(--peach-t3);7935+  box-shadow:7936+    0 2px 8px rgba(0,0,0,0.55),7937+    0 14px 48px rgba(0,0,0,0.7);79387938   overflow: hidden;7939+  width: 320px;7940+  height: 520px;7941+  display: flex;7942+  flex-direction: column;79397943 }79407944 79417945 .peach-whats-new-inner {