CSS love and tender care needed

I have noticed the following CSS issues. Please see the images:
Image 1 - Sloppy button positioning and alignment.
Image 2 - Very cramped. I feel like if all these pages could use the full width of the browser window it would look much better.
Image 3 - Toggle and range selection styling issue.
Image 4 - Lots of space above the buttons. Information missing from the backups list, like date / time and type.
Image 5 - Name of the inactive theme is truncated while there's plenty of space for it. Awkward positioning of the update button and settings icon. This is on the desktop.
Image 6 - Errors appear and text overlaps the graph when the browser window is resized.