Bug 31400: Set focus on first input when adding a new matching rule

Bug 31400: Set focus on first input when adding a new matching rule

When adding a new matching rule the cursor/focus should be in
the first input field of the form: Matching rule code

* Add a new matching rule form administration > matching rules
* Verify the cursor is in the search form on top of the page
* Apply patch
* Add another new matching rule
* Verify the cursor is now in the first input field of the form

Signed-off-by: Barbara Johnson <barbara.johnson@bedfordtx.gov>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>