common: enable ha_time in common packages, devices extend it

Move the homeassistant time platform (id ha_time) into all common
packages. Devices with custom triggers now use '!extend ha_time';
plain duplicate time blocks are removed. mcu-lvgl's unused time_comp
is unified to ha_time.

mcu-m5paper.yaml

@@ -26,9 +26,7 @@ packages:
   common: !include common/common.yaml
 
 time:
-  - platform: homeassistant
-    id: ha_time
-    timezone: Europe/Bratislava
+  - id: !extend ha_time
     on_time_sync:
       - bm8563.write_time
   - platform: bm8563