search_params should have default for easier usage in template

Signed-off-by: emanuele <emanuele45@gmail.com>
Reworked the search boards selection area not to rely on toggle to save the state and instead reply only on "boards_check_all" + added a function to better split boards in two columns avoiding pieces of category on one side and pieces on the other

Signed-off-by: emanuele <emanuele45@gmail.com>
List of boards checkboxes is a common template, made a function out of it and used in search and ignored boards

Signed-off-by: emanuele <emanuele45@gmail.com>