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/contribute/licenses.md

@@ -0,0 +1,12 @@
+# Ліцензії
+
+:::info
+All code contributions must be made under the permissive [BSD 3-clause license](https://opensource.org/licenses/BSD-3-Clause) and must not impose any further constraints on its use.
+:::
+
+На цій сторінці документуються ліцензії різних компонентів в системі.
+
+- [PX4 Flight Stack](https://github.com/PX4/PX4-Autopilot) — BSD
+- [PX4 Middleware](https://github.com/PX4/PX4-Autopilot) — BSD
+- [Pixhawk Hardware](https://github.com/PX4/Hardware) — CC-BY-SA 3.0
+- [PX4 User Guide](https://github.com/PX4/PX4-user_guide) (Documentation) — [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).