1. advancedSettings.js

- Remove commonStyles.modalOverlay__footer and commonStyles.modalOverlay__footerButton
- Remove padding from advancedSettings thanks to modal dialog normalization

2. bitcoinDashboard.js

- Add no-important to Aphrodite
- Replace paymentCommon.panelFooter with styles.dashboardFooter with temp__displayNone
- Replace qrcodeOverlay with modalOverlay__qrcodeOverlay

3. ledgerBackup.js

- Remove commonStyles.modalOverlay__footer and commonStyles.modalOverlay__footerButton

4. ledgerRecovery.js

- Remove commonStyles.modalOverlay__footer and commonStyles.modalOverlay__footerButton

5. paymentsTab.js

- Add paymentHistoryOverlay__header
- Add paymentHistoryOverlay__footer
- Add paymentHistoryOverlay__body
- Add temp__displayNone temporarily

6. syncTab.js

- Rename overlayContent to newOverlayContent
- Add newOverlayFooter
- Remove syncOverlayBody__wrapper
- Remove commonStyles.modalOverlay__footer and commonStyles.modalOverlay__footerButton
- Remove commonStyles.modalOverlay__dialog and commonStyles.modalOverlay__title thanks to modal dialog normalization
- Set user-select:none to syncOverlayBody__wrapper

7. commonStyles.js - Remove modalOverlay__* thanks to modal dialog normalization (Addresses #8054)

8. global.js - Add zindexModal

9. payment.js - Remove panelFooter thanks to modal dialog normalization

10. modalOverlay.js - Refactor with Aphrodite (Closes #8054)

dialog
|- dialog__wrapper_modal
|- dialog__wrapper_last
|- dialog__wrapper_transparentBackground
|-- dialog__header
|--- dialog__header__close
|--- dialog__header__title
|-- dialog__body__wrapper
|--- dialog__body
|-- dialog__footer

11. preferences.less - Remove obsolete code (Addresses #8661)

12. modalOverlay.less - Remove obsolete code (Addresses #8054)