switch to using TextResourceConfigurationService to account for configuration overides when reading breadcrumb configurations involving filteredTypes

Emitters should generally not be reassigned as their corresponding event would also be lost. Marking these as readonly just to enforce this

Use `Array<T | U>` when dealing with union types instead of  `(T | U)[]`

We compile using the alwaysStrict flag so these directives are not needed

breadcrumbs - show hellip when outline info is available but not intersecting with the current selection

move breadcrumbs into title control, enable different style depending on tabs vs no-tabsfor a start breadcrumbs only show with tabs enabled