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/ko/test_cards/mc_04_failsafe_testing.md

@@ -0,0 +1,37 @@
+# 시험 MC_04 - 안전 장치 시험
+
+## Objective
+
+Test RC loss, data link loss, and low battery failsafes.
+
+## Preflight
+
+- Verify RC Loss action is Return to Land
+- Verify Data Link Loss action is Return to Land and the timeout is 10 seconds
+- Verify Battery failsafe
+    - Action is Return to Land
+    - Battery Warn Level is 25%
+    - Battery Failsafe Level is 20%
+    - Battery Emergency Level is 15%
+
+## Flight Tests
+
+❏ 원격 조종기 연결 유실
+
+    ❏ Take off in Altitude mode
+
+    ❏ Move at least 20 meters away home position
+
+    ❏Turn off RC and check the vehicle returns to home position, wait for the descent and turn on the RC and take over.
+
+❏ Datalink Loss
+
+    ❏ Disconnect telemetry, vehicle should return to home position after 10 seconds, wait for the descent and reconnect the telemetry radio
+
+❏ Battery Failsafe
+
+    ❏ Confirm the warning message is received in QGC
+
+    ❏ Confirm the vehicle returns to land on failsafe level
+
+    ❏ Confirm the vehicle lands on emergency land level