* cleanup warnings, reorganize some code
* move ComposeAutoCompleteAdapter to compose package
* composeOptions doesn't need to be a class member
* add DraftsActivity and DraftsViewModel
* drafts
* remove unnecessary Unit in ComposeViewModel
* add schema/25.json
* fix db migration
* drafts
* cleanup code
* fix compose activity rotation bug
* fix media descriptions getting lost when restoring a draft
* improve deleting drafts
* fix ComposeActivityTest
* improve draft layout for almost empty drafts
* reformat code
* show toast when opening reply to deleted toot
* improve item_draft layout
