Remove or reframe references to the obsolete HeroListComponent component that was taken from an old version of the Tour of Heroes tutorial.
Incorporates review feedback.
Fix#44662
PR Close#46647
add the ariaCurrentWhenActive input to the RouterLinkActive directive so that
users can easily set the aria-current property to their active router
links
resolves#35051
PR Close#45167
The purpose of the changes is to clean all markdown to match a single pedantic style.
* To ensure all changes in style are properly separated.
* To ensure all styled content aligns to nearest 4-character-tab.
* To ensure all code blocks use the Angular `<code-example>` or `<code-tab>` elements.
* To ensure all markdown exists outside of html tags.
* To ensure all images use the Angular style for `<img>` elements.
* To ensure that all smart punctuation is replaced or removed.
```text
’, ’, “, ”, –, —, …
```
* To ensure all content does not conflict with the following reserved characters.
```text
@, $, *, &, #, |, <, >,
```
* To ensure all content displays using html entities.
The following changes were made to files in the following directory.
```text
aio/content
```
The target files were markdown files.
The list of excluded files:
```text
.browserslistrc, .css, .conf, .editorconfig, .gitignore, .html, .js, .json, .sh, .svg, .ts, .txt, .xlf,
```
PR Close#45325
According to @atscott:
> We no longer speculate about future deprecations. There are no current plans to remove
> `params` or `queryParams` and there's no benefit to advising against their use.
PR Close#43562