* feat(IndicatorAPI): accept Vue components
- Adds a new property to Indicators, `component`, which is a synchronous or asynchronous Vue component.
- Adds `wrapHtmlElement` utility function to create anonymous Vue components out of `HTMLElement`s (for backwards compatibility)
- Refactors StatusIndicators.vue to use dynamic components, allowing us to dynamically render indicators (and keep it all within Vue's ecosystem).
* refactor(indicators): use dynamic Vue components instead of `mount()`
- Refactors some indicators to use Vue components directly as async components
* refactor: use Vue reactivity for timestamps in clock indicator
* fix(test): fix unit tests and remove some console logs
* test(e2e): stabilize ladSet e2e test
* test: mix in some Vue indicators in indicatorSpec
* refactor: cleanup variable names
* docs: update IndicatorAPI docs
* fix(e2e): wait for async status bar components to load before snapshot
* a11y(e2e): add aria-labels and wait for status bar to load
* test(e2e): add exact: true
* fix: initializing indicators
* fix(typo): uhhh.. how did that get there? O_o
* fix: use synchronous components for default indicators
* test: clean up, remove unnecessary `nextTick()`s
* test: remove more `nextTick()`s
* refactor: lint:fix
* fix: `on` -> `off`
* test(e2e): stabilize tabs test
* test(e2e): attempt to stabilize limit lines tests with `toHaveCount()` assertion
