Enhance UX/UI for Tablet Devices

[alperozturk96]

Make the left navigation drawer always visible on larger screens

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Move the quota information at the bottom of the navigation drawer.

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Preserve app state and user data during configuration changes, such as screen rotation.

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Adjust button and component widths to better suit tablet screen sizes, especially in landscape mode avoid full-width elements where inappropriate to maintain visual balance and usability.

[tobiasKaminsky]

Are there any low hanging fruits?
If yes, please split them in a new ticket, so that we can tackle them earlier.

[joshtrichards]

Also see #6769