refactor(ivy): migrate all host-specific styling instructions to element-level styling instructions (#30336)

This patch removes all host-specific styling instructions in favor of
using element-level instructions instead. Because of the previous
patches that made sure `select(n)` worked between styling calls, all
host level instructions are not needed anymore. This patch changes each
of those instruction calls to use any of the `elementStyling*`,
`elementStyle*` and `elementClass*` styling instructions instead.

PR Close #30336

packages/core/src/render3/component.ts

@@ -111,6 +111,11 @@ export function renderComponent<T>(
     opts: CreateComponentOptions = {}): T {
   ngDevMode && publishDefaultGlobalUtils();
   ngDevMode && assertComponentType(componentType);
+
+  // this is preemptively set to avoid having test and debug code accidentally
+  // read data from a previous application state...
+  setActiveHostElement(null);
+
   const rendererFactory = opts.rendererFactory || domRendererFactory3;
   const sanitizer = opts.sanitizer || null;
   const componentDef = getComponentDef<T>(componentType) !;