Resolve #3189439 "Last clicked tab"

Changed target branch for MR to 4.0.x Closes #3189439

added 8 commits

• a4ce1042...c0b3cc4c - 7 commits from branch project:4.0.x
• db2d49af - Merge branch '4.0.x' into '3189439-last-clicked-tab'

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added 1 commit

• bdb07879 - Added update hook. Set remember_last_clicked_tab default value on existing QT instances.

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added 1 commit

• cf5d00cc - Added new setting for remember_last_clicked_tab to QuicktabsConfigSchemaTest

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