* [Client] Show live connection latency in the status bar
Add a permanent status-bar label fed by ConnectionController's
pingStatsUpdated: shows the latest round-trip time, hides while
disconnected or without samples, and carries a tooltip with
Last/Median/95th percentile/Maximum over the rolling sample window
(mirrored into the accessible description). The server tab gets the
same stats as its tooltip.
Took 2 minutes
Took 2 minutes
Took 1 minute
Took 48 seconds
Took 25 seconds
Took 4 minutes
* [Client] Graph connection latency history in the status bar
Add LatencyGraphWidget, a size-agnostic bar sparkline over the rolling
sample window: heights scale to the window's own range while colors map
onto an absolute quality ramp, so a steady good ping stays green. Embed
it in the new LatencyStatusWidget together with the textual ping
readout and feed both through ConnectionController's forwarded signals;
the whole area hides while disconnected or without samples.
Took 9 minutes
Took 14 seconds
* [Client] Show latency details when clicking the ping display
Clicking the status bar ping area opens a popup with a larger instance
of the latency graph plus the numeric statistics, selectable and
mirrored into the accessible name. Qt::Popup closes it on any outside
click; contents refresh live while open.
Took 33 seconds
* Fixup from core commit
Took 6 minutes
Took 5 seconds
Took 5 minutes
* Lint.
Took 12 minutes
* Consolidate.
Took 6 minutes
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Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>