[FIX] website: fix the outline hover effect

Before this commit, there was a 1 pixel border around the image that
remained visible after the "outline" hover effect mouse out animation
was triggered.

This happened due to a typo where the initial value for the "outline"
animation was set to 1 pixel instead of 0 pixels.

task-3495241

closes odoo/odoo#134975

Signed-off-by: Romain Derie (rde) <rde@odoo.com>

addons/website/static/src/svg/hover_effects.svg

@@ -142,7 +142,7 @@
             <animate
                 xlink:href="#shapeBorder"
                 attributeName="stroke-width"
-                values="1;hover_effect_stroke_width"
+                values="0;hover_effect_stroke_width"
                 keyTimes="0;1"
                 keySplines="0.5 0 0.5 1"
                 dur="0.3"