trailingSlash "never" configuration does not work properly

**Describe the bug**

I have a Blazor WebAssembly project where the `staticwebapp.config.json` is in the `wwwroot` directory. The `swa-cli.config.json` is in the root directory of the project.

When deploying the static web app to Azure the `navigationFallback` configuration applies but not the `trailingSlash` configuration.

In #1017 it is mentioned the `staticwebapp.config.json` needs to be in the root directory of the project (which is the configured `appLocation` in `swa-cli.config.json`) but in the documentation it clearly states:

"However, the file may be placed in any subfolder within the folder set as the `app_location`."

**To Reproduce**

Project: https://github.com/DavidVollmers/Ignis/tree/master/website/Ignis.Website
Deployed Website: https://ignis.dvolper.dev

Link that works: https://ignis.dvolper.dev/docs/components/headlessUI
Link that does not work: https://ignis.dvolper.dev/docs/components/headlessUI/

**Expected behavior**

Whenever a trailing `/` is added to any URL it should be removed.

**Additional context**

For some reason it works for `https://ignis.dvolper.dev/`, which redirects to `https://ignis.dvolper.dev`.