Long labels like "Deactivate xyz" or "Delete xyz" can
be confusing for translators and it can also create bad
strings that can end with like 4 long words in German.
It is better to have the simple options like "Confirm"
and "Cancel". This commit fixes this issue by changing
the text to "Confirm" in their respective template files.
Fixes#17926.
This commit adds 'close-modal-btn' class to cancel button and cross icon
in the deactivation stream modal.
This change is a prep commit for enabling background events on
'hidden.bs.modal' event. As we would enable background events in furhter
commit using the 'hidden.bs.modal' event, we would need to remove the
'hide.bs.modal' event of deactivation_stream_modal which removes the
element from DOM.
When we remove this event we would need a e.stopPropagation call to avoid
unexpected closing of stream settings which was not a problem previously
because the element was being removed from DOM before actual closing of
modal.
So instead of adding a different handler, we can use the handler used
for stream privacy modal here by adding this new class.