Fix some typos found by Crowdin translators (#1007)

* Fix some typos found by Crowdin translators

* us mu symbol

libs/buttons/buttons.cpp

@@ -274,7 +274,7 @@ bool wasPressed(Button_ button) {
 }
 
 /**
- * Gets the component identifier for the buton
+ * Gets the component identifier for the button
  */
 //%
 int id(Button_ button) {

libs/controller/accelerometer.ts

@@ -84,7 +84,7 @@ namespace controller {
     }
 
     /**
-     * Register a customer gesture for the controller
+     * Register a custom gesture for the controller
      * @param id 
      * @param update
      * @param handler

libs/core/pinsDigital.cpp

@@ -107,7 +107,7 @@ void onEvent(DigitalInOutPin pin, PinEvent event, Action body) {
 * @param value the value of the pulse (default high)
 * @param maximum duration in micro-seconds
 */
-//% blockId="pins_pulse_in" block="pulse in (µs)|pin %name|pulsed %high||timeout %maxDuration (us)"
+//% blockId="pins_pulse_in" block="pulse in (µs)|pin %name|pulsed %high||timeout %maxDuration (µs)"
 //% weight=18 blockGap=8
 //% help="pins/pulse-in"
 //% blockNamespace=pins

libs/microphone/microphone.cpp

@@ -26,7 +26,7 @@ SINGLETON(WMicrophone);
 
 namespace input {
 /**
-* Registers an event that runs when a lound sound is detected
+* Registers an event that runs when a loud sound is detected
 */
 //% help=input/on-loud-sound
 //% blockId=input_on_loud_sound block="on loud sound"