core: pagination API to load items around defined or the earliest unread item (#5100)

* core: auto increment chat item ids (#5088)

* core: auto increment chat item ids

* file name

* down name

* update schema

* ignore down migration on schema dump test

* fix testDirectMessageDelete test

* fix testNotes test

* core: initial api support for items around a given item (#5092)

* core: initial api support for items around a given item

* implementation and tests for local messages

* pass entities down

* unused

* getAllChatItems implementation and tests

* pagination for getting chat and tests

* remove unused import

* group implementation and tests

* refactor

* order by created at for local and direct chats

* core: initial landing api for chat and gaps  (#5104)

* initial work on initial param for loading chat

* support for initial

* controller parse

* fixed sqls

* refactor names

* fix ChatLandingSection serialized type

* total accuracy on landing section

* descriptive view message

* foldr

* refactor to make landingSection reusable

* refactor: use foldr everywhere

* propagate search

* Revert "propagate search"

This reverts commit 01611fd719.

* throw when search is sent for initial

* gap size wip (needs testing)

* final

* remove order by

* remove index

---------

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

* core: fix initial api latest chat items ordering (#5151)

* core: fix one item missing from latest in initial and wrong check (#5153)

* core: fix one item missing from latest in initial and wrong check

* final fixes and tests

* clearer tests

* core: remove gaps and make sure page size is always the same (#5163)

* remove gaps

* consistent pagination size

* proper fix and around fix too

* optimize

* refactor

* core: simplify pagination

* core: first unread queries (#5174)

* core: pagination nav info (#5175)

* core: pagination nav info

* wip

* rework

* rework

* group, local

* fix

* rename

* fix tests

* just

---------

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

src/Simplex/Chat/Controller.hs

@@ -572,7 +572,7 @@ data ChatResponse
   | CRChatSuspended
   | CRApiChats {user :: User, chats :: [AChat]}
   | CRChats {chats :: [AChat]}
-  | CRApiChat {user :: User, chat :: AChat}
+  | CRApiChat {user :: User, chat :: AChat, navInfo :: Maybe NavigationInfo}
   | CRChatItems {user :: User, chatName_ :: Maybe ChatName, chatItems :: [AChatItem]}
   | CRChatItemInfo {user :: User, chatItem :: AChatItem, chatItemInfo :: ChatItemInfo}
   | CRChatItemId User (Maybe ChatItemId)
@@ -839,6 +839,8 @@ data ChatPagination
   = CPLast Int
   | CPAfter ChatItemId Int
   | CPBefore ChatItemId Int
+  | CPAround ChatItemId Int
+  | CPInitial Int
   deriving (Show)
 
 data PaginationByTime