split external amount in expenses and gains

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/routes/accounting/account.svelte

@@ -18,15 +18,16 @@
 
 	function calcSums(){
 		let sums = {};
-		sums[0]      = 0;
+		sums[ 0] = 0;
+		sums[-1] = 0;
 		for (let user of Object.values(users)) sums[user.id] = 0;
 		for (let transaction of filtered) {
 			for (let user of Object.values(users)){
 				if (user.id == transaction.destination.id) sums[user.id] += transaction.amount;
 				if (user.id == transaction.source.id) sums[user.id] -= transaction.amount;
 			}
-			if (!transaction.destination.id) sums[0] += transaction.amount;
-			if (!transaction.source.id)      sums[0] -= transaction.amount;
+			if (!transaction.destination.id) sums[ 0] += transaction.amount;
+			if (!transaction.source.id)      sums[-1] += transaction.amount;
 		}
 		return sums;
 	}
@@ -154,10 +155,14 @@
 				</th>
 				{/each}
 				<td class="amount">
-					<br/>
+					{t('external gains')}<br/>
 					{sums[0].toFixed(2)}&nbsp;{account.currency}
 				</td>
-				<td colspan="3"></td>
+				<td class="amount">
+					{t('external expenses')}<br/>
+					{sums[-1].toFixed(2)}&nbsp;{account.currency}
+				</td>
+				<td colspan="2"></td>
 			</tr>
 		</tbody>
 	</table>