chore: change 'Community groups' to 'Discord server' (#2973)

Author: PASSK3YS

packages/web/src/javascripts/Components/Preferences/Panes/HelpFeedback.tsx

@@ -106,7 +106,7 @@ const HelpAndFeedback = ({ application }: { application: WebApplication }) => {
       </PreferencesGroup>
       <PreferencesGroup>
         <PreferencesSegment>
-          <Title>Community groups</Title>
+          <Title>Discord server</Title>
           <Text>
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