Update index.js

[teresarwqin]

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Remove EXCLUDE label
Set mapId value to DEMO_MAP_ID

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Fixes #<issue_number_goes_here> 🦕

[willum070]

Files in /dist are generated, so this change would be overwritten. You must make changes in js-samples/samples/. Edit this file: https://github.com/googlemaps/js-samples/blob/main/samples/place-text-search/index.ts

Just a note about EXCLUDE tags, I use custom map IDs for many example maps mostly to reduce POI noise. I know some internally don't prefer it, but I feel that the visual noise from extra POIs can impede understanding. Unfortunately the tag itself is not visually attractive, but that's a trade I'm willing to make for a much better looking map.

[teresarwqin]

Thanks for the context.

The problem is the mapId is truncated on the dev site - https://developers.google.com/maps/documentation/javascript/place-search#maps_place_text_search-javascript
This is causing confusion to developers.