core: message reactions (#2429)

* core: message reactions

* remove comments

* core: commands to set reactions

* fix tests

* process reaction messages

* store functions

* include reactions on item updates

* remove print

* view, tests

* load reactions for new items

* test removing reaction

* remove spaces

* limit the number of different reactions on one item

* remove unique constraints

* fix permissions

* indexes

* check chat item content before adding reaction

* fix group reactions

* simpler index

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Co-authored-by: spaced4ndy <8711996+spaced4ndy@users.noreply.github.com>

src/Simplex/Chat/Mobile.hs

@@ -128,6 +128,7 @@ mobileChatOpts dbFilePrefix dbKey =
       chatCmdDelay = 3,
       chatServerPort = Nothing,
       optFilesFolder = Nothing,
+      showReactions = False,
       allowInstantFiles = True,
       muteNotifications = True,
       maintenance = True