Fix redirection after language change in mobile

What does this MR do?

This MR changes the language selection component and the full-layout component so that full layout finds any router event and stores the current path to localstorage. Then when the lang-component is invoked, it changes the language and redirects to the previous path using the localstorage key.

Related issues and links

Fix #313 #292

Developer Checklist

• I have successfully run the code of this merge request locally

• I have verified locally that my changes work for all necessary screen sizes

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Tech review Checklist

Have you verified that what is supposed to happen, actually does, and what is not supposed to happen, indeed does not?

• The MR accurately describes the changes and has a relevant title/description
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Overall review Checklist

• The MR references related issues/MRs
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