docs: Update I2C documentation and clean up RGB LED files

I2C Documentation Updates (33_i2c.rst):
- Enhanced SSD1306 display example code structure
- Improved Arduino C++ code formatting and comments
- Better pin configuration documentation for PULSAR H2
- Cleaner code organization and readability

RGB LED Documentation Updates:
- Updated 55_RGB_LED.rst with latest improvements
- Removed redundant 55_ws28.rst file to avoid duplication
- Maintained consistent naming convention

Visual Assets:
- Updated pinout.png with latest hardware specifications
- Improved visual clarity for pin assignments

These updates improve code readability, eliminate file duplication, and enhance the overall documentation quality for ESP32-H2 development.

Author: GitHub Actions

software/sphinx/src/source/33_i2c.rst

@@ -263,9 +263,8 @@ Library Support
         Serial.begin(9600);
 
         // Initialize I2C - PULSAR H2 pins: A4 (SDA) = GPIO12, A5 (SCL) = GPIO22
-        Wire.setSDA(12);
-        Wire.setSCL(22);
-        Wire.begin();
+
+        Wire.begin(12,22);
         // Start the OLED display
         if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3C for 128x64
           Serial.println(F("SSD1306 allocation failed"));
@@ -299,7 +298,7 @@ Library Support
 
         // Refresh the display to show the new count
         display.display();
-        
+
         // Increment the counter
         counter++;
 

software/sphinx/src/source/55_RGB_LED.rst

@@ -52,19 +52,21 @@ Below is an example that demonstrates how to control addressable RGB LED strips
       .. code-block:: c++
 
          #include <Adafruit_NeoPixel.h>
-         
+
          #define RGB_LED_PIN 8
          #define NUM_LEDS 1
-         
+
          // Initialize addressable RGB LED strip
          Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LEDS, RGB_LED_PIN, NEO_GRB + NEO_KHZ800);
-         
+
          void setup() {
             strip.begin();
-            // Set color (Red, Green, Blue) - orange color  
+            // Set color (Red, Green, Blue) - orange color
             strip.setPixelColor(0, 255, 128, 0);
             strip.show();
          }
+
+         void loop(){}
    .. tab:: esp-idf
 
       .. code-block:: c