directory: support public channels and relay-based groups (#6840)

* directory: support public channels and relay-based groups (plan)

* types

* amend types

* directory types, resolve known link

* implementation, test fails

* fix test

* fix test

* more test

* minimal test

* more test

* debug test

* clean up

* remove debug logs

* refactor

* use group/channel terms correctly

* remove unsupported commands

* manage profile update

* owner left the channel

* more tests, correct response to sent link

* re-registration

* /help and /link commands

* correct listing for channels

* fix test

* fix bot api

* refactor

* do not include link data in GLPKnown

* refactor

* diff

* undo refactor

* simplify

* remove harness test

* remove flip

* add v6.5 app requirement for channels

* add website support

* update bot api types

* correct member count, fix test

* members -> subscribers

* add link to channel description

* fix css

* move version note

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Co-authored-by: Evgeny @ SimpleX Chat <259188159+evgeny-simplex@users.noreply.github.com>

src/Simplex/Chat/View.hs

@@ -2103,7 +2103,7 @@ viewConnectionPlan ChatConfig {logLevel, testView} _connLink = \case
     GLPConnectingConfirmReconnect -> [grpLink "connecting, allowed to reconnect"]
     GLPConnectingProhibit Nothing -> [grpLink "connecting"]
     GLPConnectingProhibit (Just g) -> connecting g
-    GLPKnown g@GroupInfo {preparedGroup, membership = m} -> case preparedGroup of
+    GLPKnown g@GroupInfo {preparedGroup, membership = m} _ _ -> case preparedGroup of
       Just PreparedGroup {connLinkStartedConnection} -> case memberStatus m of
         GSMemUnknown
           | connLinkStartedConnection -> connecting g