feat: add english legal page

src/pages/en/legal.mdx

+---
+layout: "@layouts/ArticleLayout.astro"
+title: Imprint
+subtitle: Who's behind all this?
+headerImage: images/fchh/association/fchh-logopattern-hero.png
+headerImageAlt: The FCHH logo as a repeated pattern
+hidden: true
+translated: de/legal
+---
+
+## Information according to § 5 TMG
+
+Fab City Hamburg e.V.  
+Hermann-Blohm-Straße 3  
+20457 Hamburg  
+
+**Authorised representative:** Dr. Tobias Redlich (for Helmut Schmidt University/University of the Federal Armed Forces)
+
+**Register Court:** Amtsgericht Hamburg  
+**Register Number:** VR 24578  
+**Sales Tax Identification Number:** DE347419319  
+
+### Contact:
+**E-Mail:** <a href="mailto:info[ätt]fabcity.hamburg">info(ätt)fabcity.hamburg</a>  
+**Phone:** 040/31976868  
+
+## Responsible for the content according to § 18 para. 1 MStV
+
+Fab City Hamburg e.V.  
+Hermann-Blohm-Straße 3  
+20457 Hamburg  
+
+**Authorised representative:** Dr. Tobias Redlich (for Helmut Schmidt University/University of the Federal Armed Forces)