[➕ Feature]: clean-up the incident list page

[Kiryous]

Manage your incidents

make the subtitle useful or remove it

filters

hide them by default or make it closer to the date in the table

group by value

remove the column

sorting

sort by severity by default?
useful default tabs:
— Open incidents
— Closed (?)
— All incidents

[talboren]

remove the column

Lets have it in the incident details if it exists (not None)