Update display configuration in Cat Medication Tracker: change display platform to mipi_spi and adjust color depth and buffer size

esphome/cat-medication-tracker.yaml

@@ -68,7 +68,7 @@ spi:
 
 # ILI9488 Display (3.5" 320x480, portrait)
 display:
-  - platform: ili9xxx
+  - platform: mipi_spi
     model: ILI9488
     spi_id: tft_spi
     cs_pin: GPIO15
@@ -84,7 +84,9 @@ display:
     id: my_display
     auto_clear_enabled: false
     update_interval: 2s
-    color_palette: 8BIT
+    color_depth: 8
+    # Keep memory usage low without PSRAM: draw only a quarter of the screen per chunk.
+    buffer_size: 25%
     lambda: |-
       // Colors
       auto red = Color(255, 0, 0);