Input fields turn white in dark mode upon using auto-complete

[cristina-eleonora]

When a user uses auto-complete, the color of the input fields changes to a light grey, #E8F0FE, instead of staying dark (however, the icons stay the same color as they would be in dark mode):

When a user inputs values manually , the behaviour is normal.

[ryankeairns]

The same situation can be seen on our Kibana password reset page. With some quick Googlin', it is possible to override these styles, but it's quite hacky and potentially brittle.

FWIW, this approach basically works although it doesn't seem worth the tradeoff, imo:

Reference links used to cobble this together

https://stackoverflow.com/questions/2781549/removing-input-background-colour-for-chrome-autocomplete
https://webagility.com/posts/the-ultimate-list-of-hacks-for-chromes-forced-yellow-background-on-autocompleted-inputs

[cchaos]

Related issue: #827
Original attempt: #1805