Add new targets on Windows makefile (winmake.ps1)

Add the following targets in winmake.ps1:
- `installer`: builds the Windows installer
- `docs`: builds the documentation HTML pages
- `validatepr`: runs the Linux Makefile `.valiatepr`
                target using podman.
- `lint`: faster validation that runs linter locally

Update of `build_windows.md`:
- removed every reference to the MSYS2 platform
- added instructions to build the installer and linters

Fix containers#21821 and containers#21911

Signed-off-by: Mario Loriedo <mario.loriedo@gmail.com>

.pre-commit-config.yaml

@@ -4,13 +4,15 @@ repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks.git
     rev: v3.4.0
     hooks:
-      # buildah-tests.diff is generated by 'git format-patch' and includes
+      # `buildah-tests.diff` is generated by 'git format-patch' and includes
       # trailing whitespace as part of its format. We can work around that,
       # but unfortunately the buildah repo has some files with tabs, which
       # git-diff formats as '[+/-]<space><tab>', which these hooks choke on.
-      # Just disable checks on this diff file as a special case.
+      # `contrib/systemd/user` is a symlink but for some reason, on windows,
+      # pre-commit consider it as a regular file and tries to fix it.
+      # Just disable checks on these files as a special case.
       - id: end-of-file-fixer
-        exclude: test/buildah-bud/buildah-tests.diff
+        exclude: test/buildah-bud/buildah-tests.diff|contrib/systemd/user
       - id: trailing-whitespace
         exclude: test/buildah-bud/buildah-tests.diff|test/e2e/quadlet/remap-keep-id2.container|test/e2e/quadlet/line-continuation-whitespace.container
       - id: mixed-line-ending