For an unknown reason, when the `chatLogView` ListView uses
a `verticalLayoutDirection: BottomToTop`, it prevents the application
from successfully rendering during login and crashes.
From debugging this, we know that this only happens when the above
condition applies *and* when a `DelegateModel` is used.
The delegate doesn't even need proper data, it application would still
crash.
We found out that the crash can be avoided when another `ListView` exists
in this component (however it's unclear why).
For now this commit adds such a placeholder `ListView` until it
we know more about what's going on.
In some cases inside of 1-on-1 chats, the fake messages added to
the beginning of the message list, wouldn't determine the correct
username of the contact in question.
This commit explicitly calls `chatsModel.userNameOrAlias()` instead
of relying on `activeChannel.name` which tries to do the same.
This commit adds a menu item to the message context menu to
copy links that may exist inside of a message.
There are three possible scenarios:
1. There's no link in the message, which causes the menu to not
render the dedicated menu item at all
2. There's one link in the message, which renders an additional
`Action` with a copy-to-clipboard functionality
3. There are multiple links in a single message. This adds a
nested `PopupMenu` in the existing menu with menu items for each
link extracted from the message
To make this work there were some changes in the `PopupMenu` component
needed, as it wasn't take the sub menu's `enabled` state into account
properly. This makde it always render nested menus even when they
should've been invisible.
Closes: #1733
Having the Timeline component loaded eagerly made switching
between channels rather slow because it always tries to read
the current message list from the chats model.
This commit changes the layout so that the timeline layout container
is only loaded conditionally when indeed activated.