Exclude toggle crash

[NejcZdovc]

Description

Steps to Reproduce

1. Enable rewards
2. Go to a site
3. Open panel
4. toggle auto include

Actual result:

You can't exclude site

Expected result:

You can exclude site

Reproduces how often:

Brave version (brave://version info)

Version/Channel Information:

• Can you reproduce this issue with the current release?
• Can you reproduce this issue with the beta channel?
• Can you reproduce this issue with the dev channel?
• Can you reproduce this issue with the nightly channel?

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:

[GeetaSarvadnya]

Verification passed on

Brave	0.69.128 Chromium: 77.0.3865.75 (Official Build) (64-bit)
Revision	201e747d032611c5f2785cae06e894cf85be7f8a-refs/branch-heads/3865@{#776}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

(Verified excluding and including Twitter/YT/Twitch/Sites/Vimeo/Reddit pubs)

• Verified the test plan from Fixes exclude crash brave-core#3044 (verified in both clean and upgraded profile)
• Logged Twitch verified pubs are Not being added to a-c table #6142

Verification passed on

Brave	0.69.128 Chromium: 77.0.3865.75 (Official Build) (64-bit)
Revision	201e747d032611c5f2785cae06e894cf85be7f8a-refs/branch-heads/3865@{#776}
OS	Ubuntu 18.04 LTS

• Verified the test plan from Fixes exclude crash brave-core#3044 (verified in both clean and upgraded profile)

Verified passed with

Brave	0.69.129 Chromium: 77.0.3865.90 (Official Build) (64-bit)
Revision	58c425ba843df2918d9d4b409331972646c393dd-refs/branch-heads/3865@{#830}
OS	macOS Version 10.13.6 (Build 17G5019)

• Verified test plan from Fixes exclude crash brave-core#3044 and STR from description