Add "Delete All" functionality to History Controller

[soner-yuksel]

Description:

Currently, there is no "Delete Entire History" functionality on History page itself. Users should have to navigate Settings -> Shields & Privacy -> Clear Data and mark Browsing History and execute Clear Data now.

The idea is to add new simple way to clear entire History inside the page.

Actual result:

Only way is to clear the History on the page itself is to delete all entry one by one.

Expected result:

Add a "Delete All" bar button item on History Navigation bar and press it will show a action sheet alert for explainin the functionality and approval of the user.

Screenshot:

[srirambv]

Verification passed on iPhone XR with iOS 13.5 running 1.30(21.8.5.11)

• Verified clear history button is shown on history page
• Verified clicking the trash bin warns the user about clearing history
• Verified clicking on Clear History clears all the history entries

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Verification passed on iPhone 7+ with iOS 14.5.1 running 1.30(21.8.5.11)

• Verified clear history button is shown on history page
• Verified clicking the trash bin warns the user about clearing history
• Verified clicking on Clear History clears all the history entries

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Verification passed on iPad Pro with iOS 13.5 running 1.30(21.8.5.11)

• Verified clear history button is shown on history page
• Verified clicking the trash bin warns the user about clearing history
• Verified clicking on Clear History clears all the history entries