hints: #2677 fixed: allow wrapping text inside tool tip

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
history: #2681 fixed: allow to maximize history windows on all Window Managers

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
tabs: replaced NoTabs field with tabs:detached property

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
messages: typo fixed

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
message: split half of MessageManager into UnreadMessageRepository

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>