Route the box-release confirmation through the real ROM text

BoxMenu.lua's "Once released,\n%s is\ngone forever. OK?" prompt and its
"%s was\nreleased outside.\fBye %s!" follow-up (shown after confirming)
were both plain Lua literals, bypassing the extracted _OnceReleasedText
and _MonWasReleasedText labels entirely even though both exist and are
already translated in a real corpus build. Wrapped both in the same
t._X or Strings(...) pattern already used four lines above for the
Pikachu-unhappy prompt in this same function, with the same trailing
gsub to fill the {RAM:wStringBuffer} token(s) either branch leaves in
place -- _MonWasReleasedText's real text repeats the token twice (the
name appears at both ends of the sentence), and gsub's default
replace-all handles that the same way a single occurrence does.

Independent code review flagged a separate issue on this line and the
pre-existing Pikachu one right above it: both pass the nickname as a
bare gsub replacement string, which Lua %-escapes ("%" followed by a
digit 1-9 crashes with "invalid capture index", confirmed directly).
Checked how reachable that actually is: the naming screen's charset
can't produce a literal "%", and neither can a real cartridge import
(the Gen 1/2 character-decode tables never map any ROM byte to "%"
either) -- the only way in is editing a save's plain-Lua-source
nickname field directly. Not fixed here, to stay consistent with the
separate branch (fix/gsub-percent-escape-crash) already carrying this
exact fix across every callsite that shares it, including this one --
splitting the same bug's fix across two branches by which one happened
to touch the line first isn't a real reason to fix it in one place and
not the other.

src/ui/BoxMenu.lua

@@ -185,14 +185,16 @@ local function release(game)
         return
       end
       game.stack:push(TextBox.new(game,
-        Strings("Once released,\n%s is\ngone forever. OK?", name), nil, {
+        (t._OnceReleasedText or Strings("Once released,\n%s is\ngone forever. OK?", name))
+          :gsub("{RAM:wStringBuffer}", name), nil, {
         defaultNo = true, noSound = true,
         choice = function(yes)
           if not yes then return end
           table.remove(box, list.index)
           require("src.core.Sound").playCry(game.data, mon.species)
           game.stack:push(TextBox.new(game,
-            Strings("%s was\nreleased outside.\fBye %s!", name, name)))
+            ((t._MonWasReleasedText or Strings("%s was\nreleased outside.\fBye %s!", name, name))
+              :gsub("{RAM:wStringBuffer}", name))))
           list:removeCurrent()
         end,
       }))