- Update theme toggle and initialization scripts to set data-theme attribute
- Replace CSS selectors using .dark class with [data-theme="dark"] and
[data-theme="light"] attribute selectors
- Set CSS color-scheme variable alongside theme colors for better native
control appearance
- Removes redundant styles
---------
Co-authored-by: Aditya Telange <21258296+adityatelange@users.noreply.github.com>
Many of the CSS files had no semicolon after the last rule in a block,
which is proper syntax, but it's annoying when adding more rules. Since
omitting the semicolons doesn't really have a benefit, I've decided to
add them.