[FIX] remove preview for height modifications

This way the iframe and sidebar won't jiggle as much.

Author: thjo-odoo

addons/mass_mailing_egg/static/src/builder/options/height_option.xml

@@ -1,11 +1,13 @@
 <templates>
     <t t-name="mass_mailing.HeightOption">
-        <BuilderRow label.translate="Height">
-            <BuilderButtonGroup>
-                <BuilderButton id="'minheight_auto_opt'" classAction="''">Auto</BuilderButton>
-                <BuilderButton classAction="'o_height_400'">50%</BuilderButton>
-                <BuilderButton classAction="'o_height_800'">100%</BuilderButton>
-            </BuilderButtonGroup>
-        </BuilderRow>
+        <BuilderContext preview="false">
+            <BuilderRow label.translate="Height">
+                <BuilderButtonGroup>
+                    <BuilderButton id="'minheight_auto_opt'" classAction="''">Auto</BuilderButton>
+                    <BuilderButton classAction="'o_height_400'">50%</BuilderButton>
+                    <BuilderButton classAction="'o_height_800'">100%</BuilderButton>
+                </BuilderButtonGroup>
+            </BuilderRow>
+        </BuilderContext>
     </t>
 </templates>