Fix trailing spaces and missing newlines in all mcu-*.yaml files

Bulk cleanup: remove trailing whitespace and ensure files end with a
newline. Structural issues (indentation, bracket spacing) left for
per-file fixes.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

mcu-nspanel-office-r.yaml

@@ -33,7 +33,7 @@ external_components:
       url: https://github.com/sairon/esphome-nspanel-lovelace-ui
       ref: dev
     components: [nspanel_lovelace]
-  
+
 packages:
   common: !include common/common.yaml
 
@@ -56,7 +56,7 @@ script:
 
 api:
   # https://github.com/granadaxronos/120-SONG_NOKIA_RTTTL_RINGTONE_PLAYER_FOR_ARDUINO_UNO/blob/master/RTTTL_PLAYER/songs.h
-  # 
+  #
   # stupnovane:d=4,o=6,b=180:c,e,g
   # help:d=4,o=6,b=100:f,8p,f,8p,f,8p,f,8p,f,8p,f,8p,f,8p,f,8p,f,8p,f
   # gate_opening:d=16,o=5,b=160:a, 8p, a
@@ -86,7 +86,7 @@ api:
         - logger.log: "tft updating from: ${tft_url}"
         - lambda: |-
             id(nspanel_id).upload_tft("${tft_url}");
-            
+
     - service: upload_tft
       variables:
         url: string
@@ -356,7 +356,7 @@ sensor:
 # text_sensor:
 #   - platform: ble_scanner
 #     name: BLE Scanner
-    
+
 # esp32_ble_beacon:
 #   type: iBeacon
 #   uuid: '6d68252f-2e6f-b5b9-965f-43c0a3713880'