Use BP Rewrites API for Customizer BP Member Nav Items

[vapvarun]

We need to update bp_nouveau_member_customizer_nav() to the BP Rewrites API.

reported by @nitinp544 on slack

bp_get_component_navigations() can be used

A similar issue was already resolved here ​https://buddypress.trac.wordpress.org/ticket/8971

[vapvarun]

Inside Customizer Member Primary Link Reorder Options are missing

[imath]

Hi @vapvarun thanks for your report. You’re right, we’ll have it fixed asap.

Fixes a notice error about the Group's customizer panel to customize nav item orders
Brings back the nav items to the Member's customizer panel to allow the admin to customize the order for these.

Trac ticket: ​https://buddypress.trac.wordpress.org/ticket/9095

[imath]

In 13726:

BP Nouveau: repair the customizer panel to sort Members nav items

Changes introduced by the BP Rewrites API about how the Members nav items are registered and then set up generated a regression about this customizer panel.

In short, the bp_parse_query action is not fired while building the customizer's panels.

To bring back the possibility to sort the Members nav items from the BP Nouveau > Members Navigation panel, we now need to force the generation of the primary nav using the bp_get_component_navigations() function.

NB: this commit also prevents a notice error when sanitizing the navigation setting to sort items.

Props nitinp544, vapvarun

See #9095 (trunk)
Closes ​https://github.com/buddypress/buddypress/pull/230

[imath]

In 13727:

BP Nouveau: repair the customizer panel to sort Members nav items

Changes introduced by the BP Rewrites API about how the Members nav items are registered and then set up generated a regression about this customizer panel.

In short, the bp_parse_query action is not fired while building the customizer's panels.

To bring back the possibility to sort the Members nav items from the BP Nouveau > Members Navigation panel, we now need to force the generation of the primary nav using the bp_get_component_navigations() function.

NB: this commit also prevents a notice error when sanitizing the navigation setting to sort items.

Props nitinp544, vapvarun

Fixes #9095 (branch 12.0)