fix(ui): Fixed autofill color in darkmode

[marzzuki]

Fixes #129

[AliOsm]

What do you think about using var(--accent) and remove .dark selector? Something like:

input:-webkit-autofill,
textarea:-webkit-autofill,
select:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 1000px var(--accent) inset !important;
  -webkit-text-fill-color: var(--foreground) !important;
  caret-color: var(--foreground) !important;
  transition: background-color 9999s ease-in-out 0s, color 9999s ease-in-out 0s;
}

Also:

• Is the transition important?
• Is it working on all browsers?
• is there a webkit specific caret color attribute?