This commits removes the redundant `compute_show_invites` function
which computes the `show_invites` page parameter in `lib/users.py`.
It is so because, commit 13399833b0 removed
the `show_invites` context variable passed in index.html.
Hence, the `show_invites` page_param key is no
longer required to compute in backend as it can be switched with
`settings_data.user_can_invite_others_to_realm()` in the frontend.
This commits also removes the `test_compute*` tests in
`test_home` that concerned with the `show_invites` page parameter
as they are no longer required.
For this extraction, we need to move some context
parameter (from home_real in `views/home.py`) to extra
page_params parameter (of
build_page_params_for_home_page_load in
`lib/home.py`) so handlebars template can access them.
While moving I confirmed that these parameters are not
used elsewhere if some parameter is used elsewhere
(like `apps_page_url`) then I didn't remove it from the
context list, I just added it to the page_params list.
Fixes: #18795.
aryanshridhar
Aman Agrawal
sahil839
Riken Shah