Auto merge of #28586 - Florian-Schoenherr:docs-updates, r=jdm

Update docs for VS2019 and clarify

This mostly updates Windows docs, clarifies and removes some unnecessary parts.
The long chocolatey command gives more insight into what it's doing, it still gives us the same components as before (but 2019), without VS itself.

I also used `./mach clean` a few times and had one problem due to `python/_virtualenv[version]/` not being removed completely, so I clarified what the `clean`-command does (I thought it just passes on to cargo).

---
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #28530 (and maybe #25845)
- [X] These changes do not require tests because it's just docs

1 files changed, 2 insertions, 2 deletions

diff --git a/python/servo/build_commands.py b/python/servo/build_commands.py
index a0ad4b9d615..976e39c6b47 100644
--- a/python/servo/build_commands.py
+++ b/python/servo/build_commands.py
@@ -758,7 +758,7 @@ class MachCommands(CommandBase):
         return status
 
     @Command('clean',
-             description='Clean the build directory.',
+             description='Clean the target/ and python/_virtualenv[version]/ and support/hololens/ directories',
              category='build')
     @CommandArgument('--manifest-path',
                      default=None,
@@ -786,7 +786,7 @@ class MachCommands(CommandBase):
         return check_call(["cargo", "clean"] + opts, env=self.build_env(), verbose=verbose)
 
     @Command('clean-uwp',
-             description='Clean the support/hololens/ directory.',
+             description='Clean the support/hololens/ directory',
              category='build')
     def clean_uwp(self):
         uwp_artifacts = [