iMessage clone (#1)

* first draft : static views wip

* refactor to ChatMessage and ChatMessageHeader

* add pedantic

* fix lints

* remove hardcoded message

* appBar title : iMessage

* format date

* cupertino style and model view

* fix display of message based on isReceived or sent

* SendMessageInput

* refactor to MessagesPage

* MissingPluginException

* use builtins instead of custom stream builders

* handle isReceived

* delete channel header

* fix layout issues in ChannelPreview

* fix formatDate

* sticky message input

* usage of builtin MessageListCore

* remove unused imports and a todo

* rename channelsStates to channels

* replace file imports /w package:imessage/filename

* remove size required ChannelNameText

* lint and format

* sendMessage

* transition animation

* stream_chat_flutter_core instead

* format Date differently if same week

* add padding to bubble

* remove iMessage text from header

* reverse message order

* if same day don't display date

* padding chat bubble right

* remove unused extension

* constraint message width

* group messages By dates

* unused import

* fix bug input + layout+ preview onTap

* change updatedAt to createdAt

* add filter on channel

* handle refresh

* handle pagination with core LazyLoadScrollView

* preview simple medias

* upload bug

* fix attachment

* visual changes to message input

* remove size

* clean up

* wait 5 sec before displaying image(hack)

Co-authored-by: Salvatore Giordano <salvatoregiordanoo@gmail.com>

.gitignore

@@ -1,6 +1,7 @@
 .DS_Store
 .atom/
 .idea/
+.fvm/
 .vscode/
 **/.fvm/