[nextion] Add publish actions (#7646)

Co-authored-by: Keith Burzinski <kbx81x@gmail.com>

tests/components/nextion/test.esp32-ard.yaml

@@ -1,63 +1,10 @@
-wifi:
-  ssid: MySSID
-  password: password1
+substitutions:
+  tx_pin: GPIO17
+  rx_pin: GPIO16
 
-uart:
-  - id: uart_nextion
-    tx_pin: 17
-    rx_pin: 16
-    baud_rate: 115200
-
-binary_sensor:
-  - platform: nextion
-    page_id: 0
-    component_id: 2
-    name: Nextion Touch Component
-  - platform: nextion
-    id: r0_sensor
-    name: R0 Sensor
-    component_name: page0.r0
-
-sensor:
-  - platform: nextion
-    id: testnumber
-    name: testnumber
-    variable_name: testnumber
-  - platform: nextion
-    id: testwave
-    name: testwave
-    component_id: 2
-    wave_channel_id: 1
-
-switch:
-  - platform: nextion
-    id: r0
-    name: R0 Switch
-    component_name: page0.r0
-
-text_sensor:
-  - platform: nextion
-    name: text0
-    id: text0
-    update_interval: 4s
-    component_name: text0
+packages:
+  base: !include common.yaml
 
 display:
-  - platform: nextion
+  - id: !extend main_lcd
     tft_url: http://esphome.io/default35.tft
-    update_interval: 5s
-    on_sleep:
-      then:
-        lambda: 'ESP_LOGD("display","Display went to sleep");'
-    on_wake:
-      then:
-        lambda: 'ESP_LOGD("display","Display woke up");'
-    on_setup:
-      then:
-        lambda: 'ESP_LOGD("display","Display setup completed");'
-    on_page:
-      then:
-        lambda: 'ESP_LOGD("display","Display shows new page %u", x);'
-    on_buffer_overflow:
-      then:
-        logger.log: "Nextion reported a buffer overflow!"