[FIX] survey: use correct widget for CopyClipboard

As both `survey_url` and `public_url` are `Char` fields, the correct widget
to use is `CopyClipboardChar` (`CopyClipboardText` is for `Text` fields).

This was causing a display issue (the style of mentioned widgets is different).

Task 1935577

closes odoo/odoo#31624

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

addons/survey/views/survey_survey_views.xml

@@ -41,9 +41,9 @@
                     <group>
                         <group>
                             <field name="access_mode"/>
-                            <field name="public_url" readonly="1" 
+                            <field name="public_url" readonly="1"
                                 attrs="{'invisible': [('access_mode', '!=', 'public')]}"
-                                widget="CopyClipboardText"/>
+                                widget="CopyClipboardChar"/>
                             <field name="category" invisible="1"/>
                         </group>
                     </group>

addons/survey/wizard/survey_invite_views.xml

@@ -12,7 +12,7 @@
                             <field name="survey_users_login_required" invisible="1"/>
                             <field name="survey_id" readonly="context.get('default_survey_id')"/>
                             <field name="existing_mode" widget="radio" invisible="1" />
-                            <field name="survey_url" label="Public share URL" readonly="1" widget="CopyClipboardText"
+                            <field name="survey_url" label="Public share URL" readonly="1" widget="CopyClipboardChar"
                                  attrs="{'invisible':[('survey_access_mode', '!=', 'public')]}"
                                  class="mb16"/>
                             <field name="partner_ids"