Update contact.md (#3182)

* Update contact.md

* rm x

docs/contact.md

@@ -17,12 +17,11 @@ You can follow and reach out to the OWASP MAS team in many ways.
 If you'd like to contribute, take a look at our [Contributions page](contributing.md) or reach out to the project leaders Carlos or Sven.
 
 [:material-github:](https://github.com/OWASP/owasp-mastg/discussions)
-[:material-twitter:](https://twitter.com/OWASP_MAS)
 [:simple-bluesky:](https://bsky.app/profile/owasp-mas.bsky.social)
 [:simple-mastodon:](https://infosec.exchange/@OWASP_MAS)
 [:material-slack:](https://owasp.slack.com/archives/C1M6ZVC6S)
 
-> [Request an invitation](https://owasp.slack.com/join/shared_invite/zt-g398htpy-AZ40HOM1WUOZguJKbblqkw#) to join our Slack channel `#project-mobile-app-security`
+> [Request an invitation](https://join.slack.com/t/owasp/shared_invite/zt-30tg8azbk-F_bBrBLhIB~BAavbs0aJQA) to join our Slack channel `#project-mobile-app-security`
 
 <br>
 
@@ -36,7 +35,6 @@ Carlos is a mobile security research engineer who has gained many years of hands
 
 [:material-github:](https://github.com/cpholguera)
 [:material-linkedin:](https://linkedin.com/in/carlos-holguera)
-[:material-twitter:](https://twitter.com/grepharder)
 [:simple-bluesky:](https://bsky.app/profile/grepharder.bsky.social)
 [:simple-mastodon:](https://infosec.exchange/@grepharder)
 [:material-slack:](https://owasp.slack.com/team/U5LRFEGR5)
@@ -51,7 +49,6 @@ Carlos is a mobile security research engineer who has gained many years of hands
 Sven is an experienced web and mobile penetration tester and assessed everything from historic Flash applications to progressive mobile apps. He is also a security engineer that supported many projects end-to-end during the SDLC to "build security in". He was speaking at local and international meetups and conferences and is conducting hands-on workshops about web application and mobile app security.
 
 [:material-github:](https://github.com/sushi2k)
-[:material-twitter:](https://twitter.com/bsd_daemon)
 [:material-slack:](https://owasp.slack.com/team/U1M6X5WCU)
 [:material-email:](mailto:Sven.Schleier@owasp.org)
 [:material-linkedin:](https://linkedin.com/in/sven-schleier)

mkdocs.yml

@@ -353,8 +353,6 @@ extra:
   social:
     - icon: fontawesome/brands/slack
       link: https://owasp.slack.com/archives/C1M6ZVC6S
-    - icon: fontawesome/brands/twitter 
-      link: https://twitter.com/OWASP_MAS
     - icon: fontawesome/brands/bluesky 
       link: https://bsky.app/profile/owasp-mas.bsky.social
     - icon: fontawesome/brands/mastodon