fix: updated back button to be consistent with other UI

Author: simone-lungarella

packed_scene/user_interface/BuilderTest.tscn

@@ -2,7 +2,7 @@
 
 [ext_resource type="Script" path="res://scripts/user_interface/builder_test.gd" id="1_xo1x5"]
 [ext_resource type="Theme" uid="uid://d018ofb37nf7u" path="res://assets/resources/themes/default.tres" id="2_0tpta"]
-[ext_resource type="Texture2D" uid="uid://dlo3s5bkq7x0c" path="res://assets/ui/exit_icon.png" id="3_rvsdw"]
+[ext_resource type="Texture2D" uid="uid://i6hhtf1fq6e2" path="res://assets/ui/chevron_icon.png" id="3_021hd"]
 [ext_resource type="Texture2D" uid="uid://dm1fbfmrtic6e" path="res://assets/ui/reset_icon.png" id="4_ks1t0"]
 
 [node name="BuilderTest" type="Control"]
@@ -44,7 +44,6 @@ text = "0"
 [node name="BottomContainer" type="HBoxContainer" parent="MarginContainer"]
 unique_name_in_owner = true
 layout_mode = 2
-size_flags_horizontal = 4
 size_flags_vertical = 8
 theme_override_constants/separation = 20
 
@@ -55,12 +54,11 @@ size_flags_vertical = 4
 focus_mode = 0
 theme = ExtResource("2_0tpta")
 theme_override_font_sizes/font_size = 50
-icon = ExtResource("3_rvsdw")
+icon = ExtResource("3_021hd")
 
 [node name="ResetBtn" type="Button" parent="MarginContainer/BottomContainer"]
 layout_mode = 2
-size_flags_horizontal = 4
-size_flags_vertical = 4
+size_flags_horizontal = 10
 focus_mode = 0
 theme = ExtResource("2_0tpta")
 theme_override_font_sizes/font_size = 50