Remove unnecessary comments, clean up code

platformio.ini

@@ -1,4 +1,4 @@
-; ── PlatformIO project configuration ─────────────────────────────────────────
+;  PlatformIO project configuration 
 ; Board  : Seeed XIAO nRF52840 Sense
 ; Core   : Adafruit nRF52 Arduino (via Seeed platform-seeedboards)
 ; Flash  : adafruit-nrfutil over USB serial (same as Arduino IDE)
@@ -6,7 +6,7 @@
 ; First-time setup:
 ;   pip install adafruit-nrfutil          <- upload tool (once, globally)
 ;   pio run -t upload                     <- build + flash
-; ──────────────────────────────────────────────────────────────────────────────
+; 
 
 [platformio]
 src_dir = source
@@ -16,7 +16,7 @@ platform  = https://github.com/Seeed-Studio/platform-seeedboards.git
 board     = seeed-xiao-afruitnrf52-nrf52840
 framework = arduino
 
-; ── Upload ────────────────────────────────────────────────────────────────────
+;  Upload 
 ; The XIAO uses a UF2 bootloader that accepts firmware via adafruit-nrfutil.
 ; Double-tap the reset button to enter bootloader (red LED pulses) before
 ; flashing if the board isn't auto-reset by the tool.
@@ -25,21 +25,21 @@ upload_speed    = 115200
 ; Uncomment and set the correct port if auto-detect fails:
 ; upload_port   = COM3
 
-; ── Build scripts ─────────────────────────────────────────────────────────────
+;  Build scripts 
 extra_scripts = pre:scripts/git_hash.py
 
-; ── Build flags ───────────────────────────────────────────────────────────────
+;  Build flags 
 build_flags =
     -DARDUINO_Seeed_XIAO_nRF52840_Sense
     -DNRF52840_XXAA
     -DTARGET_SEEED_XIAO_NRF52840_SENSE
 
-; ── Libraries ─────────────────────────────────────────────────────────────────
+;  Libraries 
 ; bluefruit.h, Adafruit_LittleFS.h, InternalFileSystem.h are bundled with
 ; the Adafruit nRF52 core and do NOT need to be listed here.
 ; Only external libraries are listed:
 lib_deps =
     Seeed-Studio/Seeed Arduino LSM6DS3 @ ^2.0.3
 
-; ── Serial monitor ────────────────────────────────────────────────────────────
+;  Serial monitor 
 monitor_speed = 115200