added additionalGetVars for TYPO3_branch < 9.5

[Pablo-Camara]

Fixes #

This fixes YoastSeoForTypo3\YoastSeo\UserFunctions\SnippetPreview,
the render() function has this line:

$additionalGetVars = urldecode(GeneralUtility::_GET('additionalGetVars'));

And for TYPO3 with version less than 9.5 you are not passing the additionalGetVars,
so the SnippetPreview fails to work with my custom "news" record, which needs a "news" GET param..

Resolves #443 , resolves #266

[RinyVT]

Thanks for the pull request! I'll merge it and release a new version soon (along with some other small bugfixes).

[INTERKULTUR]

@RinyVT When will be the premium plugin with this fix available? (eg. 4.1.4)

[RinyVT]

Hi @INTERKULTUR, what do you mean exactly? The premium extension depends on the free extension, so it should be fixed when you update the free extension.

[INTERKULTUR]

Hi @RinyVT, I bought, downloaded and installed the premium plugin for typo3, not the free one. In my account is still the 4.1.3. How I can safely update this version?

[RinyVT]

@INTERKULTUR The premium version cannot be installed without the free version, the free version should also be available in your installation (premium is built as an expansion of the free extension).
You should have "yoast_seo" and "yoast_seo_premium" both, updating "yoast_seo" should do the trick :D

If you run composer mode you can run `composer update yoast-seo-for-typo3/yoast_seo", if you run non-composer mode you can get the new version at:
https://extensions.typo3.org/extension/yoast_seo

[INTERKULTUR]

@RinyVT Great, thank you for this information. Now i'm with you. ;-)