migrate seaing plan

src/elm/pages/SeatingPlanPage.py

@@ -0,0 +1,29 @@
+from __future__ import annotations
+
+from typing import Optional
+
+from rio import Component, page, Rectangle, PointerEvent, ProgressCircle, Row
+from rio.event import on_populate
+
+from elm.components import SeatingPlan
+from elm.types import Seat
+
+
+@page(name="Seating Plan", url_segment="seating")
+class SeatingPlanPage(Component):
+    preloaded_seats: Optional[list[Seat]] = None
+
+    @on_populate
+    async def on_populate(self) -> None:
+        self.preloaded_seats = await Seat.find_all().to_list()
+
+
+    def build(self) -> Component:
+        return Rectangle(
+            content=Row(ProgressCircle(), margin=self.session.screen_width // 6) if self.preloaded_seats is None else SeatingPlan(margin=0, preloaded_seats=self.preloaded_seats),
+            fill=self.session.theme.box_color,
+            stroke_width = 0.1,
+            stroke_color = self.session.theme.box_border_color,
+            margin_left=1,
+            margin_top=1
+        )