The Array Argument of `bp_displayed_user_url()` needs to include specific keys

[imath]

These specific keys are:

array(
  'single_item_component'        => '',
  'single_item_action'           => '',
  'single_item_action_variables' => '',
);

The bp_members_get_path_chunks() helper function can be used to use a regular array and have it converted to the above array (making sure slugs can be customized).

During the BP Rewrites merge process (#4954), this function was misused eight times.

Use bp_members_get_path_chunks() to build URL path slugs.

Trac ticket: ​https://buddypress.trac.wordpress.org/ticket/8884

[imath]

In 13472:

Use the bp_displayed_user_url() function the right way

Use the bp_members_get_path_chunks() helper function to build the arguments array expected by bp_displayed_user_url() at 8 places where a regular array of slugs were wrongly used during the BP Rewrites merge process (#4954).

Closes ​https://github.com/buddypress/buddypress/pull/98
Fixes #8884