Visual Studio Code extension

I saw there is work into making a QML LSP server (QTBUG-68406).

I would like to leave the suggestion for an official VSCode extension from Qt. And it might not be that hard since a lot of work is already scattered around.

For example, great syntax highlighting support is already available (seanwu.vscode-qt-for-python)

My hopes are that an official extension would add LSP to at least QML. And maybe others (qrc, ui?), if that's something you might be interested in.

I use VSCode both for C++ and Python development, which are also Qt's main markets. And Python especially, is huge on VSCode.

Extensions are written in JS/TS so community contributions should be common and to be expected (Microsoft gets a lot of community PRs in official extensions).

CMake, C++, or Python language support doesn't even need to be considered because it's already there. CMake building is also there. A "MVP" implementation of qmake could simply be using the `tasks.json` functionality, although that might not be the best, and I doubt qmake support would even be necessary (at least, not a high priority on VSCode users).