en to en_GB translation catalogue (4 entries)

[ctx: @label:chooser]
note: i18n: ectx: property (text), widget (QLabel, heaptrackGuiExecutableLabel)
en: Visualizer:
en_GB: Visualiser:

en: Failed to start Heaptrack visualizer from "%1".
en_GB: Failed to start Heaptrack visualiser from "%1".

en: Check your settings and install the visualizer if necessary.
en_GB: Check your settings and install the visualiser if necessary.

en: Error during Heaptrack visualizer execution:
en_GB: Error during Heaptrack visualiser execution:
