This change removes a tour setting that was no longer being used in several automated tours. It does not affect onboarding tours or user-facing behavior, but helps keep the code simpler and easier to maintain.

`tooltipPosition` is ignored by the tour engine and has no effect on automatic tours. Onboarding tours are left unchanged.

This change updates the equity screens to use the newer form binding syntax required by the latest UI framework version. It helps keep the interface compatible and reduces the risk of issues during future upgrades, without changing the business process itself.

As part of the migration from `owl 2` to `owl 3`, this commit replaces uses of `t-custom-model` with `t-model` or `t-model.proxy`.