Fix `aHrefSanitizationWhitelist` (#846)
Fix `aHrefSanitizationWhitelist` (#846)

In https://github.com/Trustroots/trustroots/pull/774 we set this accidentally to whitelist only `geo:`.

Previous whitelist was:
```
/^\s*(https?|ftp|mailto|tel|webcal|local|file|data|blob):/
```

This puts back most of the previous whitelist (excluding `local` and `file`) as well allows `geo:` links.
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