docs: update res.clearCookie documentation for clarity and accuracy (#2000)

Improve the message by expanding on how the cookie is cleared, and
include a note about the deprecation of the `max-age` and `expires`
options: in Express 4 they are still respected (not ignored), whereas in
Express 5 they are ignored.

ref: expressjs/express#5792
ref: expressjs/express#5640
ref: expressjs/express#5672

closes: #1146

Note: We need to manage changes more effectively. Whenever there are
changes, and once they have been released, a PR should be opened here to
update the documentation. Improving these processes will help us keep
our documentation better maintained.

Signed-off-by: Sebastian Beltran <[email protected]>

Co-authored-by: ShubhamOulkar <[email protected]>

Author: bjohansebas

_includes/api/en/4x/res-clearCookie.md

@@ -1,6 +1,14 @@
 <h3 id='res.clearCookie'>res.clearCookie(name [, options])</h3>
 
-Clears the cookie specified by `name`. For details about the `options` object, see [res.cookie()](#res.cookie).
+Clears the cookie with the specified `name` by sending a `Set-Cookie` header that sets its expiration date in the past.
+This instructs the client that the cookie has expired and is no longer valid. For more information
+about available `options`, see [res.cookie()](#res.cookie).
+
+<div class="doc-box doc-warn" markdown="1">
+If the `maxAge` or `expires` options are set, the cookie may not be cleared depending on the time values provided,
+as Express does not ignore these options. It is therefore recommended to omit these options when calling this
+method. Passing these two options has been deprecated since Express v4.20.0.
+</div>
 
 <div class="doc-box doc-notice" markdown="1">
 Web browsers and other compliant clients will only clear the cookie if the given

_includes/api/en/5x/res-clearCookie.md

@@ -1,11 +1,16 @@
 <h3 id='res.clearCookie'>res.clearCookie(name [, options])</h3>
 
-Clears the cookie specified by `name`. For details about the `options` object, see [res.cookie()](#res.cookie).
+Clears the cookie with the specified `name` by sending a `Set-Cookie` header that sets its expiration date in the past.
+This instructs the client that the cookie has expired and is no longer valid. For more information
+about available `options`, see [res.cookie()](#res.cookie).
+
+<div class="doc-box doc-notice" markdown="1">
+The `expires` and `max-age` options are being ignored completely.
+</div>
 
 <div class="doc-box doc-notice" markdown="1">
 Web browsers and other compliant clients will only clear the cookie if the given
-`options` is identical to those given to [res.cookie()](#res.cookie), excluding
-`expires` and `maxAge`.
+`options` is identical to those given to [res.cookie()](#res.cookie)
 </div>
 
 ```js