Route the last hardcoded UI labels through the Strings catalog

Wrap the battle stat box, the PC quantity footer and the dex metric
labels in Strings() (SummaryMenu -- and MoveEffects since #811 --
already do this); give the battle menu a 'battle' lookup context so a
translation can shorten FIGHT/ITEM/RUN independently of the pause menu;
align the metric dex rows with the imperial ones and make the No.
prefix translatable; make the title menu's recolor zone follow Menu's
auto-grown width; honor the declared-but-unread boot.title seam,
drawing an explicit versionRibbon as one centered piece. With an empty
catalog every path is pixel-identical to vanilla.

src/ui/PlayerPC.lua

@@ -44,7 +44,7 @@ local function askQuantity(game, list, count, id, cb)
     cb(1)
     return
   end
-  list.footer = "How many?"
+  list.footer = Strings("How many?")
   local QuantityBox = require("src.ui.QuantityBox")
   game.stack:push(QuantityBox.new(game, {
     max = count,