Force adb forward if tunnel host/port is provided

Tunnel host and port are only meaningful in "adb forward" mode.

They indicate where the client must connect to communicate with the
server. In "adb reverse" mode, the client _listens_, it does not
_connect_.

Refs #2807 <#2807>

app/src/cli.c

@@ -1405,6 +1405,12 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
     }
 #endif
 
+    if ((opts->tunnel_host || opts->tunnel_port) && !opts->force_adb_forward) {
+        LOGI("Tunnel host/port is set, "
+             "--force-adb-forward automatically enabled.");
+        opts->force_adb_forward = true;
+    }
+
     int index = optind;
     if (index < argc) {
         LOGE("Unexpected additional argument: %s", argv[index]);