Merge branch pmrust.pages.upb.ro:main into main

slides/lectures/fils_en/04/slides.md

slides/lectures/fils_en/05/slides.md

slides/lectures/fils_en/06/slides.md

slides/lectures/fils_en/07/slides.md

slides/lectures/resources/communication/slides.md

slides/lectures/resources/concurrency/slides.md

slides/lectures/resources/dma/slides.md

slides/lectures/resources/executor/slides.md

slides/lectures/resources/future/slides.md

slides/lectures/resources/gpio_avr/slides.md

slides/lectures/resources/sensors/slides.md

slides/lectures/resources/spi/slides.md

slides/lectures/resources/timers/slides.md

slides/lectures/resources/uart/slides.md

website/lab/04/images/board_buzzer.png

website/lab/04/images/buzzer.png

website/lab/04/images/potentiometer_pins.png

website/lab/04/index.md

website/lab/05/images/bmp280_memory_map.png

website/lab/05/images/bmp280_wiring.png