refactor(ui5-tabcontainer): replace some ITab properties

[dimovpetar]

• Replaces isInline, forcedMixedMode, forcedPosinset, forcedSetsize, isTopLevelTab, getElementInStrip with 2 new methods: receiveStripPresentationInfo(info) and receiveOverflowPresentationInfo(info). This way it is clear that those properties are not expected to be set by the ITab implementer, but provided by the TabContainer to the ITab implementer
• Adds stripPresentation() and overflowPresentation() getters, to make it clear that ITab implementer has to provide these templates
• Renames getTabInStripDomRef to getDomRefInStrip and makes its return type match UI5Element#getDomRef
• Removes realTabReference to avoid confusion that tab presentations and tabs are the same thing. Only tab presentations have realTabReference
• Removes forcedStyle and forcedLevel. They were set and used only by the TabContainer.

BREAKING CHANGE: If your class implements the ITab interface, it must also provide receiveOverflowPresentationInfo, receiveStripPresentationInfo, getDomRefInStrip, stripPresentation and overflowPresentation. The rest of the properties are obsolete and can be deleted.

import type { ITab } from "@ui5/webcomponents-base/dist/TabContainer.js";
class MyTab implements ITab {
    getDomRefInStrip(): HTMLElement | undefined {
        return ...
    }
    receiveOverflowPresentationInfo(info) {
       // provides info for your overflow presentation
    }
    receiveStripPresentationInfo(info) {
        // provides info for your strip presentation
    }
    stripPresentation() {
       // this method was required prior this change, but it is not made clear
       // return strip presentation template
    }
    overflowPresentation() {
       // this method was required prior this change, but it is not made clear
       // return overflow presentation template
    }
}

Related to #8461

[TeodorTaushanov]

Open test/pages/TabContainer.html
Click on "Four" tab overflow button
Select "Four 1.1"
Result: Content is not displayed

Click on "Four" tab
Click on "Four" tab overflow button
Select "Four 1.1"
Result: Content is displayed