[FIX] mass_mailing: fix emoji widget position

Before this commit, in the editable form view of mass mailing, the
emoji widget is outside of the subject field, which is not optimum.
This issue was re-spawned after a recent commit that enabled saving
the mailing as a template, which changed the layout to add a star
next to the subject field.

With this commit, emoji widget is now inside the subject field.

task-2826521

closes odoo/odoo#92672

X-original-commit: 09991b477353e6167d576779b7364408b2109cd6
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

addons/mass_mailing/static/src/scss/mass_mailing.scss

@@ -1,7 +1,7 @@
 .o_form_view.o_mass_mailing_mailing_form {
 
     input.o_field_char.o_field_widget {
-        padding-right: 30px; // Avoid overlapping subject text on emoji widget
+        padding-right: 40px; // Avoid overlapping subject text on emoji widget
     }
 
     .o_notebook .tab-content .tab-pane .o_mail_body {
@@ -62,6 +62,7 @@
             margin-right: -50px;
         }
         .o_mail_emojis_dropdown {
+            margin-left: -40px;
             bottom: 0;
         }
         span.o_field_char {