-added the nodelirium tag to roaring knight to make delirium not able to transform into it

-the roaring knight duo sword attack now always spawn only from the right if hp is above 50% and the fight isn't taking long, duo swords comes from all directions if hp below 50% or the fight is taking long
-roaring knight will spawn swords around the player if hp is below 50% or the fight is taking too long

-increased the hp of the knight from 1000 to 1200

-the roaring knight can do the slashes that shoot projectiles in diagonal only if hp is below 50% or the battle is taking long, in compensation it does faster slashes as before if hp is above 50%, but can't do diagonal slashes with hp above 50%

-the roaring knight now takes a little longer to do the slashes that create projectiles, but the projectiles travels a bit faster and it can do diagonal slashes

-increased the hitbox of the swords and slashes of the roaring knight from 15 to 20
-the swords that the roaring knight create around the player takes less time to go towards where the player was
-roaring knight will always do 6 or 8 slashes now if hp is below 50% or if the fight is taking a bit long (previously could also do only 4)
-the fast flurry of slashes now is a little bit faster
-fixed the roaring knight almost always appearing as the corpse boss

-added a code to remove the custom background if the knight is killed somehow during the final attack

-fixed the roaring knight not losing collision after the final attack