Fixed issue where there was a static orange bar overlapping the toolbar when in landscape mode.
QR code tweaks: Fixed issue where the QR code help icon was missing; Added a dialog if the QR code returns in invalid URL; Check validity of QR code before leaving the page as opposed to after; If the QR code URL is valid, a use button will become available.
Tweaked dark mode to work across all sections of the app.
Fixed issue where the subject upload button was not visible.
Fixed formatting issue when the accounts page was in landscape.
