Search bar color doesn't change from dark to light in nigthly

[sebutek]

Description

Searchbar text is not readable. Also the text color of the autocompletion box is wrong.

Steps to Reproduce

1. Switch from dark mode to light mode
2. Search something with CTRL + F (Also in the autocompletion box the text is white in light mode)

Actual result:

Expected result:

Text to be readable

Reproduces how often:

Every time. Works in 0.70.121 but not in nightly

Brave version (brave://version info)

Brave	0.73.26 Chromium: 78.0.3904.70 (Official Build) nightly (64-bit)
Revision	edb9c9f3de0247fd912a77b7f6cae7447f6d3ad5-refs/branch-heads/3904@{#800}
OS	Windows 10 OS Version 1903 (Build 18362.418)
JavaScript	V8 7.8.279.17
Flash	(Disabled)
User Agent	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.70 Safari/537.36
Command Line	"C:\Program Files (x86)\BraveSoftware\Brave-Browser-Nightly\Application\brave.exe" --enable-dom-distiller --disable-domain-reliability --no-pings --extension-content-verification=enforce_strict --extensions-install-verification=enforce --sync-url=https://no-thanks.invalid --enable-features=WebUIDarkMode,NewExtensionUpdaterService,PasswordImport,SimplifyHttpsIndicator --disable-features=UnifiedConsent,NotificationTriggers,AudioServiceOutOfProcess,SmsReceiver,LookalikeUrlNavigationSuggestionsUI,AutofillServerCommunication,SyncUSSBookmarks --flag-switches-begin --flag-switches-end
Executable Path	C:\Program Files (x86)\BraveSoftware\Brave-Browser-Nightly\Application\brave.exe

Version/Channel Information:

• Can you reproduce this issue with the current release? no
• Can you reproduce this issue with the beta channel? not tested
• Can you reproduce this issue with the dev channel? not tested
• Can you reproduce this issue with the nightly channel? yes

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields?
• Does the issue resolve itself when disabling Brave Rewards?
• Is the issue reproducible on the latest version of Chrome?

Miscellaneous Information:

[sebutek]

I saw it is already fixed in #6573