Fixed last line of sprites not rendering

... yes this was dumb. I also renamed a variable
in `gpu/states.rs`

src/gpu/oam_parser.rs

@@ -63,8 +63,8 @@ impl GameBoy {
             let x_condition = sprite_x == x;
 
             // and we check if we also are on the same y axis, however, a sprite is 8
-            // pixel long, so we check if we are anywhere between row 0 to 7
-            let y_condition = ((sprite_y)..(sprite_y + 7)).contains(&y);
+            // pixel long, so we check if we are anywhere between row 1 to 8
+            let y_condition = ((sprite_y)..(sprite_y + 8)).contains(&y);
 
             if x_condition && y_condition {
                 sprite_fifo = Some((

src/gpu/states.rs

@@ -96,10 +96,10 @@ impl GameBoy {
 
         // And we get both background/window fifo and the sprite fifo
         let background_fifo = self.get_line(self.bus[tile_map_address], self.gpu.y as u16 % 8);
-        let mut sprite_fifo = self.get_sprite_fifo(self.gpu.x, self.gpu.y);
+        let mut sprite = self.get_sprite_fifo(self.gpu.x, self.gpu.y);
 
         // TODO: Implement fifo mixing
-        if let Some((sprite_fifo, sprite_data)) = &mut sprite_fifo {
+        if let Some((sprite_fifo, sprite_data)) = &mut sprite {
             self.apply_palette_to_sprite(sprite_fifo, &sprite_data.palette);
 
             if self.gpu.rendered_sprites_on_line < 10 {