[FIX] account_financial_report: Display the values of Amount cur. + Cumul cur. values in general ledger only if necessary

The currency_id field of the lines is always set, so follow the same logic as
in report/templates/general_ledger and show the data only if the currency is set
in the account.

TT51204

account_financial_report/report/templates/general_ledger.xml

@@ -367,10 +367,7 @@
                 </t>
             </div>
             <!-- Display each lines -->
-            <t
-                t-set="total_bal_curr"
-                t-value="account_or_group_item_object['init_bal'].get('bal_curr', 0)"
-            />
+            <t t-set="total_bal_curr" t-value="0" />
             <t t-foreach="account_or_group_item_object['move_lines']" t-as="line">
                 <!-- # lines or centralized lines -->
                 <div class="act_as_row lines">