feat(core): Improve CoinJoin busy screen.

[no changelog]

core/src/apps/homescreen/busyscreen.py

@@ -1,6 +1,6 @@
 import storage.cache
 from trezor import loop, ui
-from trezor.ui.layouts import draw_simple_text
+from trezor.ui.layouts import show_coinjoin
 
 from apps.base import busy_expiry_ms, set_homescreen
 
@@ -24,6 +24,4 @@ class Busyscreen(HomescreenBase):
         raise ui.Result(None)
 
     def do_render(self) -> None:
-        draw_simple_text(
-            "Please wait", "CoinJoin in progress.\n\nDo not disconnect your\nTrezor."
-        )
+        show_coinjoin()

core/src/trezor/ui/layouts/tt/__init__.py

@@ -71,6 +71,7 @@ __all__ = (
     "confirm_modify_output",
     "confirm_modify_fee",
     "confirm_coinjoin",
+    "show_coinjoin",
     "show_popup",
     "draw_simple_text",
     "request_passphrase_on_device",
@@ -1021,6 +1022,14 @@ async def confirm_coinjoin(
     )
 
 
+def show_coinjoin() -> None:
+    text = Text("Please wait", ui.ICON_CONFIG, ui.RED)
+    text.normal("CoinJoin in progress.")
+    text.br()
+    text.bold("Do not disconnect your Trezor.")
+    ui.draw_simple(text)
+
+
 # TODO cleanup @ redesign
 async def confirm_sign_identity(
     ctx: wire.GenericContext, proto: str, identity: str, challenge_visual: str | None

core/src/trezor/ui/layouts/tt_v2/__init__.py

@@ -935,6 +935,10 @@ async def confirm_coinjoin(
     )
 
 
+def show_coinjoin() -> None:
+    log.error(__name__, "show_coinjoin not implemented")
+
+
 # TODO cleanup @ redesign
 async def confirm_sign_identity(
     ctx: wire.GenericContext, proto: str, identity: str, challenge_visual: str | None