Move PX4 Guide source into /docs (#24490)

* Add vitepress tree

* Update existing workflows so they dont trigger on changes in the docs path

* Add nojekyll, package.json, LICENCE etc

* Add crowdin docs upload/download scripts

* Add docs flaw checker workflows

* Used docs prefix for docs workflows

* Crowdin obvious fixes

* ci: docs move to self hosted runner

runs on a beefy server for faster builds

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

* ci: don't run build action for docs or ci changes

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

* ci: update runners

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

* Add docs/en

* Add docs assets and scripts

* Fix up editlinks to point to PX4 sources

* Download just the translations that are supported

* Add translation sources for zh, uk, ko

* Update latest tranlsation and uorb graphs

* update vitepress to latest

---------

Signed-off-by: Ramon Roche <mrpollo@gmail.com>
Co-authored-by: Ramon Roche <mrpollo@gmail.com>

docs/uk/flight_controller/pixfalcon.md

@@ -0,0 +1,76 @@
+# Контролер польоту Pixfalcon (знятий з виробництва)
+
+<Badge type="info" text="Discontinued" />
+
+:::warning
+This flight controller has been [discontinued](../flight_controller/autopilot_experimental.md) and is no longer commercially available.
+:::
+
+:::warning
+PX4 не розробляє цей (або будь-який інший) автопілот.
+Contact the [manufacturer](https://holybro.com/) for hardware support or compliance issues.
+:::
+
+The Pixfalcon autopilot (designed by [Holybro<sup>&reg;</sup>](https://holybro.com/)) is binary-compatible (FMUv2) derivative of the [Pixhawk 1](../flight_controller/pixhawk.md) design that has been optimized for space-constrained applications such as FPV racers. Він має менше входів-виходів, що дозволяє зменшити розмір.
+
+![Pixfalcon hero image](../../assets/hardware/hardware-pixfalcon.png)
+
+## Короткий опис
+
+- Main System-on-Chip: [STM32F427](http://www.st.com/web/en/catalog/mmc/FM141/SC1169/SS1577/LN1789)
+  - CPU: 180 MHz ARM<sup>&reg;</sup> Cortex<sup>&reg;</sup> M4 з одинарною точністю FPU
+  - RAM: 256 KB SRAM (L1)
+- Failsafe System-on-Chip: STM32F100
+  - CPU: 24 MHz ARM Cortex M3
+  - RAM: 8 KB SRAM
+- GPS: u-blox<sup>&reg;</sup> M8 (в комплекті)
+
+### Підключення
+
+- 1x I2C
+- 2x UART (один для телеметрії / OSD, без контролю потоку)
+- 8x ШІМ з ручним управлінням
+- S.BUS / PPM вхід
+
+## Наявність:
+
+From distributor [Hobbyking<sup>&reg;</sup>](https://hobbyking.com/en_us/pixfalcon-micro-px4-autopilot-plus-micro-m8n-gps-and-mega-pbd-power-module.html)
+
+Опціональне обладнання:
+
+- Optical flow: PX4 Flow unit from manufacturer [Holybro](https://holybro.com/products/px4flow)
+- Digital Airspeed sensor from manufacturer [Holybro](https://holybro.com/products/digital-air-speed-sensor) or distributor [Hobbyking](https://hobbyking.com/en_us/hkpilot-32-digital-air-speed-sensor-and-pitot-tube-set.html)
+- Екранний дисплей з вбудованою телеметрією:
+  - [Hobbyking OSD + EU Telemetry (433 MHz)](https://hobbyking.com/en_us/micro-hkpilot-telemetry-radio-module-with-on-screen-display-osd-unit-433mhz.html)
+- Pure Telemetry опції:
+  - [Hobbyking Wifi Telemetry](https://hobbyking.com/en_us/apm-pixhawk-wireless-wifi-radio-module.html)
+  - [SIK Radios](../telemetry/sik_radio.md)
+
+## Збірка прошивки
+
+:::tip
+Most users will not need to build this firmware!
+It is pre-built and automatically installed by _QGroundControl_ when appropriate hardware is connected.
+:::
+
+To [build PX4](../dev_setup/building_px4.md) for this target:
+
+```
+make px4_fmu-v3_default
+```
+
+## Відладочний порт
+
+This board does not have a debug port (i.e it does not have a port for accessing the [System Console](../debug/system_console.md) or the [SWD interface](../debug/swd_debug.md) (JTAG).
+
+Розробники повинні будуть припаяти дроти до підключених площин для SWD, а також до STM32F4 (IC) TX і RX, щоб отримати консоль.
+
+## Налаштування послідовного порту
+
+| UART   | Пристрій   | Порт                                            |
+| ------ | ---------- | ----------------------------------------------- |
+| UART1  | /dev/ttyS0 | IO Debug                                        |
+| USART2 | /dev/ttyS1 | TELEM1 (без контролю потоку) |
+| UART4  | /dev/ttyS2 | GPS                                             |
+
+<!-- Note: Got ports using https://github.com/PX4/PX4-user_guide/pull/672#issuecomment-598198434 -->