Add toilets as suggested tag for fast food places

[Avan2021]

Description, Motivation & Context

Lots of fast food places like McDonald's have toilets for customers, makes sense this tag should be added as an optional field.

Related issues

Closes #1391

Links and data

Relevant OSM Wiki links:
https://wiki.openstreetmap.org/wiki/Key:toilets

• …

Relevant tag usage stats:
Usage: 200,000+

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## Test-Documentation

### Preview links & Sidebar Screenshots

<!-- Use the preview to find examples, select the feature in question and **copy this link here**.
     Find examples of nodes/areas. Find examples with a lot of tags or very few tags. – Whatever helps to test this thoroughly.
     Add relevant **screenshots** of the sidebar of those examples. -->

<!-- FYI: What we will check:
     - Is the [icon](https://github.com/ideditor/schema-builder/blob/main/ICONS.md) well chosen.
     - Are the fields well-structured and have good labels.
     - Do the dropdowns (etc.) work well and show helpful data. -->

### Search

<!-- **Test the search** of your preset and share relevant **screenshots** here.
     - Test the preset name as search terms.
     - Also test the preset terms and aliases as search terms (if present). -->

### Info-`i`

<!-- **Test the info-i** for your fields and preset and share relevant **screenshots** here.
     The info needs to help mappers understand the preset and when to use it.
     [Learn more…](https://github.com/openstreetmap/id-tagging-schema/blob/main/CONTRIBUTING.md#info-i)
 -->

### Wording

- [ ] American English
- [ ] `name`, `aliases` (if present) use Title Case
- [ ] `terms` (if present) use lower case, sorted A-Z
<!-- Learn more in https://github.com/openstreetmap/id-tagging-schema/blob/main/GUIDELINES.md#2-design-the-preset -->

[github-actions]

🍱 You can preview the tagging presets of this pull request here.

[tordans]

https://github.com/openstreetmap/id-tagging-schema/blob/main/.github/PULL_REQUEST_TEMPLATE.md?plain=1#L24-L71

[Avan2021]

Hi @tordans, this branch is based on an older one, hence the many commits. I'll create a fresh, clean branch and resubmit the PR shortly to avoid any issues. Sorry for the mess!

[tordans]

Please force push instead.

[Avan2021]

Test-Documentation

Preview links & Sidebar Screenshots

https://pr-1454--ideditor-presets-preview.netlify.app/id/dist/#locale=en&disable_features=boundaries&map=20.00/13.77830/100.47776&background=Bing&id=n6274385901

Search

It is a suggested tag so there wasn't a clear way to show it in search

Info-i

Wording

• American English
• name, aliases (if present) use Title Case
• terms (if present) use lower case, sorted A-Z

[tordans]

Thanks for adding the test documentation @Avan2021 .

FYI in this case, the "search" section would reference the "moreFields" which is where I would need to go (search) to add this field

[tordans]

Thanks for the PR @Avan2021 I just squash merged it in b030d25

For future PRs: Please rebase and force push them based on the latest main so we have a clean history in the PR. The squash merge will likely always handle any additional commits but I find it hard to be sure about that and its cleaner to have the PR only contain the commits that you add.