[FIX] *: remove auto text selection on click

*: theme_buzzy, theme_clean, theme_common, theme_graphene, theme_kiddo,
   theme_odoo_experts, theme_test_custo

See community commit for details.

task-4147162

closes odoo/design-themes#994

Related: odoo/odoo#184570
Related: odoo/enterprise#72590
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>

theme_common/static/src/old_snippets/s_big_icons/000_variables.scss

@@ -11,10 +11,6 @@ $s-big-icon-circle-icon-size: 120px;
             .fa {
                 color: o-color('alpha') !important;
             }
-            h5.o_default_snippet_text {
-                color: $font-color;
-                margin-top: 20px;
-            }
         }
         &:hover .s_big_icons_icon {
             @include o-theme-chd-big-icons-styles($h5-color: o-color('alpha'));

theme_common/static/src/scss/mixins.scss

@@ -790,9 +790,6 @@
     .fa {
         color: $fa-color !important;
     }
-    h5.o_default_snippet_text {
-        color: $h5-color !important;
-    }
 }
 
 @mixin o-theme-sri-bg-effects-styles(