Fix server logs coloring

view-webapp/src/main/kotlin/org/jeudego/pairgoth/view/ApiTool.kt

@@ -10,10 +10,12 @@ import okhttp3.internal.EMPTY_REQUEST
 class ApiTool {
     companion object {
         const val JSON = "application/json"
-        val apiRoot = System.getProperty("pairgoth.api.url").let { base ->
-            if (base.endsWith('/')) "${base}api/"
-            else "${base}/api/"
-        }
+        val apiRoot =
+            (System.getProperty("pairgoth.api.url") ?: System.getProperty("pairgoth.webapp.url"))
+            .let { base ->
+                if (base.endsWith('/')) "${base}api/"
+                else "${base}/api/"
+            }
     }
     private val client = OkHttpClient()
     private fun prepare(url: String) = Request.Builder().url("$apiRoot$url").header("Accept", JSON)