Avoid symbol scan errors in oauth-client help text

[demeritcowboy]

Overview

Errors while scanning for symbols.

Before

1. Install oauth-client
2. On almost every page you get User warning: htmlParseEntityRef: no name in Civi\Afform\Symbols::scan() (line 46 of ...\ext\afform\core\Civi\Afform\Symbols.php)
3. I think it shows up more in-your-face with php 8.1 but it would have been there before too just not as loud.

After

Technical Details

It doesn't seem to like some unescaped html symbols like > and &.

I wasn't 100% sure about the first one but it seems to evaluate correctly. You can see the text if you go to Administer - system settings - oauth, and then e.g. click on google and then on the register tab.

Comments

[civibot]

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[eileenmcnaughton]

@demeritcowboy this seems to fix the errors for me.

However, I hit them on the 5.56 rc so I think we should target that branch