Prevent crash with duplicate room suggestion

If two rooms have the same canonical alias, e.g. the recently tombstoned
and upgraded #foundation-office:matrix.org, typing `#foun` into the
composer could cause the app to crash. This avoids that by using the
(hopefully) globally unique room id as the key instead.

Signed-off-by: Joe Groocock <[email protected]>

Author: frebib

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/messagecomposer/suggestions/SuggestionsPickerView.kt

@@ -60,7 +60,7 @@ fun SuggestionsPickerView(
                 when (suggestion) {
                     is ResolvedSuggestion.AtRoom -> "@room"
                     is ResolvedSuggestion.Member -> suggestion.roomMember.userId.value
-                    is ResolvedSuggestion.Alias -> suggestion.roomAlias.value
+                    is ResolvedSuggestion.Alias -> suggestion.roomSummary.roomId.value
                 }
             }
         ) {