Endless enable notifications dialog on Android 8

[SergeyZhukovsky]

It happens on stable channel as well on Android 8 device only.

• Install Brave on Android 8 device.
• Enable Rewards and observe a prompt to enable notifications.
• Observe the prompt every time you open a panel even though they are enabled, there is no way to get rid of it.

notifications.webm

cc @Miyayes

[kjozwiak]

@Uni-verse @vlad-hoff we'll need @srirambv to check this one as he has a Android 8 device available and was originally able to reproduce the above. It will be hard to QA via emulators as Rewards doesn't work on x86. Hopefully the devices that @deeppandya sent over will get here soon so I can help out 👍 We'll also need to check to make sure the above is still working on newer versions of Android as well.

[kjozwiak]

The above requires 1.50.120 or higher for 1.50.x verification 👍

[Uni-verse]

Verified on Samsung GS 21 running Android 13 using the following build(s):

Brave	1.50.120 Chromium: 112.0.5615.121 (Official Build) (64-bit) 
Revision	39cc4e45904ae9f1741c4fbaa866e629c96f2268-refs/branch-heads/5615_51@{#8}
OS	Android 13; Build/TP1A.220624.014

STR: #29563 (comment)

• Ensured that enable notifications dialog is not shown in the rewards panel as well as the brave://rewards page after enabling notifications in setting menu.
• Ensured that turn on notifications dialog is shown when loading brave://rewards
• Ensured that turn on notifications dialog is displayed when accessing rewards panel when rewards account is connected.
• Ensured turning off Brave notifications will show the dialog again.

Disabled (Rewards Page)	Disabled (Panel)	Enabled (Panel)	Enabled (Rewards Page)	Settings

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Verification passed on Huawei P20 with Android 8.1.0 running 1.50.120 x64 build

• Verified steps from #29563 (comment)
• Verified enable notifications are not constantly shown after enabling Rewards
• Verified enable notifications are only shown when app notification is disabled

29563.mp4