Fix swaybar when running on named outputs.

When using a bar on a named output, load_swaybars() requires the
output to be active (ie. in the root container), but this is not the case if
the bar is added to the last output. To fix this, load_swaybars() is now
called after the output has been added to the root container.

After fixing that, swaybar would segfault due to using the wrong index
variable when loading outputs and config.

sway/config.c

@@ -936,9 +936,6 @@ void apply_output_config(struct output_config *oc, swayc_t *output) {
 			execvp(cmd[0], cmd);
 		}
 	}
-
-	// reload swaybars
-	load_swaybars();
 }
 
 char *do_var_replacement(char *str) {

sway/container.c

@@ -156,6 +156,7 @@ swayc_t *new_output(wlc_handle handle) {
 
 	apply_output_config(oc, output);
 	add_child(&root_container, output);
+	load_swaybars();
 
 	// Create workspace
 	char *ws_name = NULL;

swaybar/ipc.c

@@ -278,7 +278,7 @@ void ipc_bar_init(struct bar *bar, const char *bar_id) {
 		} else {
 			int j = 0;
 			for (j = 0; j < bar->config->outputs->length; ++j) {
-				const char *conf_name = bar->config->outputs->items[i];
+				const char *conf_name = bar->config->outputs->items[j];
 				if (strcasecmp(name, conf_name) == 0) {
 					use_output = true;
 					break;