Fix pixel bar below title

This commit changes how the left and right indents are calculated for the
title bottom pixel bar, so that it is displayed properly in case the left or
right border is hidden.

sway/desktop/output.c

@@ -383,21 +383,21 @@ static void render_container_simple_border_normal(struct sway_output *output,
 	scale_box(&box, output_scale);
 	render_rect(output->wlr_output, output_damage, &box, color);
 
+	// Setting these makes marks and title easier
+	size_t inner_x = con->x + view->border_thickness * view->border_left;
+	size_t inner_width = con->width - view->border_thickness * view->border_left
+		- view->border_thickness * view->border_right;
+
 	// Single pixel bar below title
 	memcpy(&color, colors->border, sizeof(float) * 4);
 	color[3] *= con->alpha;
-	box.x = con->x + view->border_thickness;
+	box.x = inner_x;
 	box.y = view->y - 1;
-	box.width = con->width - view->border_thickness * 2;
+	box.width = inner_width;
 	box.height = 1;
 	scale_box(&box, output_scale);
 	render_rect(output->wlr_output, output_damage, &box, color);
 
-	// Setting these makes marks and title easier
-	size_t inner_x = con->x + view->border_thickness * view->border_left;
-	size_t inner_width = con->width - view->border_thickness * view->border_left
-		- view->border_thickness * view->border_right;
-
 	// Marks
 	size_t marks_width = 0;
 	if (config->show_marks && marks_texture) {