Fix typos with codespell

Using codespell 2.0.0.

Method:
```
$ cat > ../godot-word-whitelist.txt << EOF
ang
curvelinear
dof
doubleclick
fave
findn
GIRD
leapyear
lod
merchantibility
nd
numer
ois
ony
que
seeked
synching
te
uint
unselect
webp
EOF

$ codespell -w -q 3 -I ../godot-word-whitelist.txt --skip="./thirdparty,*.po"
$ git diff // undo unwanted changes
```

1 files changed, 1 insertions, 1 deletions

diff --git a/servers/rendering/renderer_viewport.cpp b/servers/rendering/renderer_viewport.cpp
index f7be6c6c60..9ac2c1918f 100644
--- a/servers/rendering/renderer_viewport.cpp
+++ b/servers/rendering/renderer_viewport.cpp
@@ -322,7 +322,7 @@ void RendererViewport::_draw_viewport(Viewport *p_viewport, XRInterface::Eyes p_
 					Vector2 point = clip_rect.position + clip_rect.size * signs[j];
 
 					if (sign_cmp == light_dir_sign) {
-						//both point in same direction, plot offseted
+						//both point in same direction, plot offsetted
 						points[point_count++] = point + light_dir * cull_distance;
 					} else if (sign_cmp.x == light_dir_sign.x || sign_cmp.y == light_dir_sign.y) {
 						int next_j = (j + 1) % 4;