fix: missing input placeholder added

Related: template-cologne#106

src/QUI/ERP/FrontendUsers/createAddressBegin.html

@@ -25,6 +25,7 @@
            name="company"
            class="quiqqer-frontendUsers-userdata-field"
            autocomplete="organization"
+           placeholder="{locale group='quiqqer/erp' var='control.profile.CustomerData.company'}"
            {$r}
     />
 </label>

src/QUI/ERP/FrontendUsers/createAddressEnd.html

@@ -9,6 +9,7 @@
            name="vatId"
            class="quiqqer-frontendUsers-userdata-field"
            value="{$User->getAttribute('quiqqer.erp.euVatId')|escape:'html'}"
+           placeholder="{locale group='quiqqer/order' var='vatId'}"
     />
 </label>
 {/if}

src/QUI/ERP/FrontendUsers/editAddressBegin.html

@@ -26,6 +26,7 @@
            class="quiqqer-frontendUsers-userdata-field"
            autocomplete="organization"
            value="{$Address->getAttribute('company')|escape:'html'}"
+           placeholder="{locale group='quiqqer/erp' var='control.profile.CustomerData.company'}"
            {$r}
     />
 </label>

src/QUI/ERP/FrontendUsers/editAddressEnd.html

@@ -9,6 +9,7 @@
            name="vatId"
            class="quiqqer-frontendUsers-userdata-field"
            value="{$User->getAttribute('quiqqer.erp.euVatId')|escape:'html'}"
+           placeholder="{locale group='quiqqer/order' var='vatId'}"
     />
 </label>
 {/if}