[IMP] sale: rename Pro-Forma into Pro-Foma Invoice

Purpose
=======

pro-forma concept is not easy, it is an adjective in english, it should be "Pro-Forma Invoice" to avoid confuision

Rename it everywhere (report, form, settings)

Specification
=============

In Sales/Settings, Sales/Quotations and in the report (.pdf)

addons/sale/data/mail_template_data.xml

@@ -28,7 +28,7 @@
 <p>
 Here is
 % if ctx.get('proforma')
-in attachment, your pro-forma
+in attachment, your pro-forma invoice
 % else
 the ${doc_name} <strong>${object.name}</strong>
 % endif

addons/sale/models/sale_config_settings.py

@@ -50,8 +50,8 @@ class SaleConfigSettings(models.TransientModel):
         "Show total",
         implied_group='sale.group_show_price_total',
         group='base.group_portal,base.group_user,base.group_public')
-    group_proforma_sales = fields.Boolean(string="Pro-Forma", implied_group='sale.group_proforma_sales',
-        help="Allows you to send pro-forma.")
+    group_proforma_sales = fields.Boolean(string="Pro-Forma Invoice", implied_group='sale.group_proforma_sales',
+        help="Allows you to send pro-forma invoice.")
     sale_show_tax = fields.Selection([
         ('subtotal', 'Tax-Excluded Prices'),
         ('total', 'Tax-Included Prices')], string="Tax Display",

addons/sale/report/sale_report_templates.xml

@@ -34,7 +34,7 @@
                     <span t-if="doc.state in ['draft','sent']">Quotation # </span>
                 </t>
                 <t t-if="env.context.get('proforma', False)">
-                    <span>Pro-Forma # </span>
+                    <span>Pro-Forma Invoice # </span>
                 </t>
                 <span t-field="doc.name"/>
             </h2>

addons/sale/views/sale_config_settings_views.xml

@@ -250,7 +250,7 @@
                         <div class="o_setting_right_pane">
                             <label for="group_proforma_sales"/>
                             <div class="text-muted">
-                                Allows you to send Pro-Forma to your customers
+                                Allows you to send Pro-Forma Invoice to your customers
                             </div>
                         </div>
                     </div>

addons/sale/views/sale_views.xml

@@ -155,11 +155,11 @@
                         type="action" context="{'default_advance_payment_method': 'percentage'}"
                         attrs="{'invisible': ['|',('invoice_status', '!=', 'no'), ('state', '!=', 'sale')]}"/>
                     <button name="action_quotation_send" string="Send by Email" type="object" states="draft" class="btn-primary"/>
-                    <button name="action_quotation_send" type="object" string="Send PRO-FORMA" groups="sale.group_proforma_sales" class="btn-primary" attrs="{'invisible': ['|', ('state', 'in', ['sent', 'sale']), ('invoice_count','&gt;=',1)]}" context="{'proforma': True}"/>
+                    <button name="action_quotation_send" type="object" string="Send PRO-FORMA Invoice" groups="sale.group_proforma_sales" class="btn-primary" attrs="{'invisible': ['|', ('state', 'in', ['sent', 'sale']), ('invoice_count','&gt;=',1)]}" context="{'proforma': True}"/>
                     <button name="print_quotation" string="Print" type="object" states="draft" class="btn-primary o_sale_print"/>
                     <button name="action_confirm" id="action_confirm" states="sent" string="Confirm Sale" class="btn-primary" type="object" />
                     <button name="action_confirm" states="draft" string="Confirm Sale" type="object" />
-                    <button name="action_quotation_send" type="object" string="Send PRO-FORMA" groups="sale.group_proforma_sales" attrs="{'invisible': ['|', ('state', '=', 'draft'), ('invoice_count','&gt;=',1)]}" context="{'proforma': True}"/>
+                    <button name="action_quotation_send" type="object" string="Send PRO-FORMA Invoice" groups="sale.group_proforma_sales" attrs="{'invisible': ['|', ('state', '=', 'draft'), ('invoice_count','&gt;=',1)]}" context="{'proforma': True}"/>
                     <button name="print_quotation" string="Print" type="object" states="sent,sale" class="o_sale_print"/>
                     <button name="action_quotation_send" string="Send by Email" type="object" states="sent,sale"/>
                     <button name="action_cancel" states="draft,sent,sale" type="object" string="Cancel"/>