Merge pull request #14504 from nextcloud/chore/noid/adjust-supported-talk-version

chore: Adjust minimum talk requirements to Talk 12/Nextcloud 22

Author: SystemKeeper

admin_manual/installation/system_requirements.rst

@@ -132,8 +132,8 @@ Talk App
 
 - **iOS** 16.0+
 - **Android** 8.0+
-- **Nextcloud Server** 19.0+
-- **Nextcloud Talk** 9.0+
+- **Nextcloud Server** 22.0+
+- **Nextcloud Talk** 12.0+
 
 Web browser
 -----------
@@ -146,6 +146,5 @@ of a browser from this list, or one based on those:
 - Google **Chrome**/Chromium
 - Apple **Safari**
 
-.. note:: If you want to use Nextcloud Talk you should use Mozilla **Firefox** 52+ or Google **Chrome**/Chromium 49+ to have
-          the full experience with video calls and screensharing. Google Chrome/Chromium requires an additional plugin for
-          screensharing.
+.. note:: If you want to use Nextcloud Talk you should use the latest version of Mozilla **Firefox** or 
+          Google **Chrome**/Chromium to have the full experience with video calls and screensharing.