en to en_GB translation catalogue (2 entries)

[ctx: @label:chooser]
note: i18n: ectx: property (text), widget (QLabel, label_4)
en: Config script:
en_GB: Configuration script:

[ctx: @info:placeholder]
note: i18n: ectx: property (placeholderText), widget (QLineEdit, lineOnDevPath)
en: /path/to/a/on-device/writable/directory
en_GB: /path/to/a/on-device/writeable/directory
