Fix popup tab loading interruption

[mallexxx]

Task/Issue URL: https://app.asana.com/0/414709148257752/1202193006784955/f GH Issue URL: https://github.com/duckduckgo/iOS/issues/1202 Tech Design URL: CC: @miasma13

Description:

• Fixes loading interruption when WebView created in webView:createWebViewWithConfiguration:..
• Loading is interrupted for cleaned urls but managed by a creator tab otherwise
• This fixes an issue of Printing not working on a new tab created for printing

Steps to test this PR:

1. Validate print works on https://www.theenglishkitchen.co/2009/09/beer-battered-fish.html?m=1
2. Validate links opened in new tab work (e.g. in yandex search)
3. Validate pop-up windows created with js work

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Internal references:

Software Engineering Expectations Technical Design Template When ready for review, remember to post the PR in MM