[ld2450] preserve precision of angle (#13600)

esphome/components/ld2450/ld2450.cpp

@@ -451,7 +451,7 @@ void LD2450Component::handle_periodic_data_() {
   int16_t ty = 0;
   int16_t td = 0;
   int16_t ts = 0;
-  int16_t angle = 0;
+  float angle = 0;
   uint8_t index = 0;
   Direction direction{DIRECTION_UNDEFINED};
   bool is_moving = false;

esphome/components/ld2450/sensor.py

@@ -143,6 +143,7 @@ CONFIG_SCHEMA = CONFIG_SCHEMA.extend(
                     ],
                     icon=ICON_FORMAT_TEXT_ROTATION_ANGLE_UP,
                     unit_of_measurement=UNIT_DEGREES,
+                    accuracy_decimals=1,
                 ),
                 cv.Optional(CONF_DISTANCE): sensor.sensor_schema(
                     device_class=DEVICE_CLASS_DISTANCE,