Make use of lock files in configuration directory
for preventing multiple instances of Mirage from
being running at the same time, at least for a
single configuration.
Running multiple instances of Mirage is known to
cause encryption errors in one or more instances.
That's what was supposed to happen for non-media message events
since redactions were implemented, but seems like nio doesn't
properly keep the original event type.
Issue introduced in 758edd8a6a (0.6.1)
The filter for the first sync was passed as the filter for later
syncs and vice-versa, which caused problems like redaction events never
arriving.
The chat page is complex and slow to create, which creates a visible lag
when user switches room.
Instead of throwing the pre-switch one away and
making a new one from scratch, keep the same page and update its user &
room ID for a big improvement in responsiveness. The rest is automatic
thanks to QML property bindings.
When using the focus(Previous/Next)Message keybinds, no message is
focused and the view has been scrolled up, focus the message in the
center of the view instead of returning to the list's bottom to focus
the most recent one.
In the composer, when the text cursor was inside a word starting
with a @ but not matching any username (thus the completion UI being
invisible), pressing up/down arrow would not do anything instead of
going to the prev/next line.
The zoom keybinds now modify this setting directly.
The `uiScale` property in themes now default to using this zoom setting,
since just removing it would need of annoying changes through theme
files and QML code, and is best left to until the future theming
overhaul update.
Make it possible to see the change without restarting Mirage if an
image used for the theme's background was edited, or if used did the
mistake of typing "/path/to/img" then corrects it to
"file:///path/to/img".
When there's a one line (emote or non-message) event with its avatar
shown and combinable events follow it, that first event delegate's height
is supposed to be one line with the avatar overflowing into
the following event's blank space.
This behavior hasn't been working for a long time. This commit restores
it, along with improving the related code's quality.
