make shear amount smaller like other effects

Author: SharkPool-SP

src/ShaderManager.js

@@ -185,13 +185,13 @@ ShaderManager.EFFECT_INFO = {
     horizontal_shear: {
         uniformName: 'u_horizontalShear',
         mask: 1 << 13,
-        converter: x => x,
+        converter: x => x / 10,
         shapeChanges: true
     },
     vertical_shear: {
         uniformName: 'u_verticalShear',
         mask: 1 << 14,
-        converter: x => x,
+        converter: x => x / 10,
         shapeChanges: true
     },
 };