Move IP Overrides into VPN Settings menu

[rablador]

Currently resides in top level menu under settings, but should reside under submenu item VPN Settings.

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This change is 

[linear]

IOS-557 Move the IP Overrides in the VPN Settings instead of it being a top level Settings

[rablador]

Reviewable status: 0 of 25 files reviewed, 3 unresolved discussions

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ios/MullvadSettings/SettingsManager.swift line 147 at r1 (raw file):

        logger.debug("Reset store.")

        let keys = completely ? SettingsKey.allCases : [.settings, .deviceState, .apiAccessMethods, .ipOverrides]

This has apparently been missed.

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ios/MullvadVPN/Coordinators/Settings/IPOverride/IPOverrideViewController.swift line 150 at r1 (raw file):

            On some networks, where various types of censorship are being used, our server IP addresses are \
            sometimes blocked.
            To circumvent this you can import a file or a text, provided by our support team, \

Removed some spaces that would make alert text look bad.

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ios/MullvadVPN/View controllers/VPNSettings/VPNSettingsViewController.swift line 137 at r1 (raw file):

                    value: """
                    The automatic setting will randomly choose from the valid port ranges shown below.
                    The custom port can be any value inside the valid ranges:

Removed some spaces that would make alert text look bad.

[acb-mv]

Reviewed 9 of 22 files at r1, 16 of 16 files at r2, all commit messages.
Reviewable status: all files reviewed, 3 unresolved discussions

[buggmagnet]

Reviewed 9 of 22 files at r1, 16 of 16 files at r2, all commit messages.
Reviewable status: all files reviewed, 3 unresolved discussions