Fixes blank panel (uplift to 0.69.x)

[brave-builds]

Uplift of #3201

Approved, please ensure that before merging:

• You have checked CI and the builds, lint, and tests all pass or are not related to your PR.
• You have tested your change on Nightly.
• The PR milestones match the branch they are landing to.

After you merge:

• The associated issue milestone is set to the smallest version that the changes is landed on.

[kjozwiak]

@NejcZdovc mind taking a look at https://staging.ci.brave.com/job/brave-browser-build-pr/job/pr3201_blank-panel_0.69.x/1/execution/node/454/log/. Looks like it failed on Win x64 via the following errors:

14:31:04  In file included from ../../brave/components/greaselion/browser/greaselion_download_service.cc:20:
14:31:04  ../..\brave/browser/brave_browser_process_impl.h(11,10): fatal error: 'brave/browser/tor/buildflags.h' file not found
14:31:04  #include "brave/browser/tor/buildflags.h"
14:31:04           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
14:31:04  1 error generated.
14:31:04  [32706/38065] CXX obj/apps/apps/app_restore_service.obj
14:31:04  

08:31:04  ../../brave/components/brave_sync/client/brave_sync_client_impl.cc(18,10): fatal error: 'brave/common/extensions/api/brave_sync.h' file not found
08:31:04  #include "brave/common/extensions/api/brave_sync.h"
08:31:04           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
08:31:04  1 error generated.
08:31:04  [32709/38065] CXX obj/apps/apps/saved_files_service.obj

08:31:15  ninja: build stopped: subcommand failed.
08:31:15  null
08:31:16  powershell.exe : null
08:31:16  At C:\jenkins\workspace\ild-pr_pr3201_blank-panel_0.69.x@tmp\durable-2cfcd2e0\powershellWrapper.ps1:3 char:1
08:31:16  + & powershell -NoProfile -NonInteractive -ExecutionPolicy Bypass -Comm ...
08:31:16  + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
08:31:16      + CategoryInfo          : NotSpecified: (null:String) [], RemoteException
08:31:16      + FullyQualifiedErrorId : NativeCommandError

[kjozwiak]

Uplift into 0.69.x approved after deliberating with @brave/uplift-approvers. Please make sure that all the correct labels are added and the appropriate issue is moved into the correct milestone.