website: Revive mailto as contact

Mailto is an important page, one of the many that was lost in the reorg.
Revive it as freebsd.org/contact, and move it to the legal column in the
footer. The bottom heading of mailto used to be commercial vendors, zap
that and replace it with a legal section for the freebsd foundation.
Also simplify some of the language a bit.

Adding core as a *non-blocking* reviewer so they can weigh in if they
desire, but I think this is extremely positive and reasonable and we can
keep iterating, so I do not intend to wait for them unless they ask.

Event:			Berlin Hackathon 202609
Reviewed by:		wosch
Suggested by:		wosch
Differential Revision:  https://reviews.freebsd.org/D59442

website/content/en/contact.adoc

@@ -6,13 +6,13 @@ sidenav: about
 include::shared/en/mailing-lists.adoc[]
 include::shared/en/urls.adoc[]
 
-= Contacting the FreeBSD Community
+= Contacting the Community
 
 link:../community/mailinglists[Mailing lists are the primary communication channel].
 
 Please note, some lists require subscription before posting; posts from non-subscribers may be held in a queue.
 
-== Questions about FreeBSD
+== Questions
 
 Write to the {freebsd-questions}; see the link:../community[Community] page for other options.
 
@@ -22,11 +22,11 @@ Questions or suggestions about documentation may be addressed to the {freebsd-do
 
 Alternatively, for link:{main-site}[Documentation Portal] content -- including the link:{handbook}[FreeBSD Handbook] and link:{faq}[FAQ] -- in-page resources include the option to edit the page in GitHub.
 
-== link:../administration/[FreeBSD Project Administration and Management]
+== Project Administration and Management
 
-Webmaster Team, Security Team, Postmaster Team, Bugmeisters, and others.
+link:../administration[Core Team, Security, Tree Management, Webmaster Team, Postmaster Team, Bugmeisters, and others.]
 
-== Miscellaneous
+== Legal
 
-link:../commercial/[Commercial Vendors]
+FreeBSD trademarks are owned by the link:https://freebsdfoundation.org/[FreeBSD Foundation].
 

website/themes/beastie/i18n/en.toml

@@ -295,6 +295,9 @@ other = "Get FreeBSD"
 [f-code-of-conduct]
 other = "Code of Conduct"
 
+[f-contact]
+other = "Contact"
+
 [f-security-advisories]
 other = "Security Advisories"
 

website/themes/beastie/layouts/_partials/site-footer.html

@@ -79,6 +79,9 @@
       <section class="legal-column">
         <h3 class="column-title">{{ i18n "f-legal" }}</h3>
         <ul class="column-elements-container">
+          <li>
+            <a href="{{ "contact" | relLangURL }}" class="column-element">{{ i18n "f-contact" }}</a>
+          </li>
           <li>
             <a href="https://freebsdfoundation.org/donate/" target="_blank" class="column-element">{{ i18n "f-donations" }}</a>
           </li>