fix: Quality and standards improvements for Place AC session.

[willum070]

Gives Place Autocomplete session token sample a much-needed overhaul!

• Added a map! Now results are indicated by a marker.
• Upgraded to use gmp-map element and dynamic library import.
• Added a text indication for the session token count.
• Made UI a11y-friendlier.
• Improved the visual appearance of the UI.

Change-Id: Ica31d9553f244961a67360655e5ca1e40510d324

[chrisjshull]

also

titleElement.innerText = `Query predictions for "${request.input}"`;

should be

titleElement.innerText = `Place predictions for "${request.input}"`;

[noelle-jung]

Btw the first jsfiddle you linked to in your first comment is not Places AC related!

[snippet-bot]

Here is the summary of changes.

You are about to add 1 region tag.

• samples/place-autocomplete-data-session/index.html:19, tag maps_place_autocomplete_data_session_html

You are about to delete 1 region tag.

• samples/place-autocomplete-data-session/index.html:16, tag maps_place_autocomplete_data_session_html

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[noelle-jung]

#766 (comment)

[noelle-jung]

Some styling suggestions