fix(docs): disable swcHtmlMinimizer and fix broken links

The SWC HTML minifier rejects slightly invalid HTML that browsers
tolerate, breaking the build on every page. Disable it while keeping
all other Docusaurus Faster optimizations.

Also fix broken relative links in after-the-installation.mdx and
donate.mdx by using absolute paths.

apps/docs/docs/community/donate.mdx

@@ -22,4 +22,4 @@ Homarr is completely free to use. We'd highly appreciate if you consider donatin
 ## Where to donate
 We accept donations on our official [OpenCollective](https://opencollective.com/homarr).
 You may also sponsor us directly by providing a useful service / product to us other means.
-You can get into contact with us [here](./get-in-touch).
+You can get into contact with us [here](/docs/community/get-in-touch).