fix(compiler): scope css keyframes in emulated view encapsulation (#4…

…2608)

Ensure that keyframes rules, defined within components with emulated
view encapsulation, are scoped to avoid collisions with keyframes in
other components.

This is achieved by renaming these keyframes to add a prefix that makes
them unique across the application.

In order to enable the handling of keyframes names defined as strings
the previous strategy of replacing quoted css content with `%QUOTED%`
(introduced in commit 7f689a2) has been removed and in its place now
only specific characters inside quotes are being replaced with
placeholder text (those are `;`, `:` and `,`, more can be added in
the future if the need arises).

Closes #33885

BREAKING CHANGE:

Keyframes names are now prefixed with the component's "scope name".
For example, the following keyframes rule in a component definition,
whose "scope name" is host-my-cmp:

   @Keyframes foo { ... }

will become:

   @Keyframes host-my-cmp_foo { ... }

Any TypeScript/JavaScript code which relied on the names of keyframes rules
will no longer match.

The recommended solutions in this case are to either:
- change the component's view encapsulation to the `None` or `ShadowDom`
- define keyframes rules in global stylesheets (e.g styles.css)
- define keyframes rules programmatically in code.

PR Close #42608