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/zh/test_and_ci/index.md

@@ -0,0 +1,14 @@
+# 平台测试和持续集成
+
+PX4 is extensively tested using unit and integration tests run via continuous integration.
+Live flight testing is also performed by the development team and the broader community.
+
+Test topics include:
+
+- [Test Flights](../test_and_ci/test_flights.md) - How to make test flights (e.g. to [test PRs](../contribute/code.md#pull-requests))
+- [Unit Tests](../test_and_ci/unit_tests.md)
+- [Continuous Integration (CI)](../test_and_ci/continous_integration.md)
+- [ROS Integration Testing](../test_and_ci/integration_testing.md)
+- [MAVSDK Integration Testing](../test_and_ci/integration_testing_mavsdk.md)
+- [Docker](../test_and_ci/docker.md)
+- [Maintenance](../test_and_ci/maintenance.md)