Reach nodes by unique name instead of long paths

Nodes a script uses through a path of several nodes are marked unique in their
scene and found with %Name. The search list is renamed SearchResults, and the
player row's nodes get their real types.

PlayersPanel.tscn

@@ -42,6 +42,7 @@ horizontal_alignment = 1
 vertical_alignment = 1
 
 [node name="AddPlayersButton" type="TextureButton" parent="VBoxContainer/HBoxContainer" unique_id=634410148]
+unique_name_in_owner = true
 custom_minimum_size = Vector2(2.08165e-12, 40)
 layout_mode = 2
 size_flags_horizontal = 8
@@ -51,6 +52,7 @@ shortcut = SubResource("Shortcut_jafqj")
 texture_normal = ExtResource("5_31tjv")
 
 [node name="AddPlayerContainer" type="HBoxContainer" parent="VBoxContainer" unique_id=1371948739]
+unique_name_in_owner = true
 visible = false
 custom_minimum_size = Vector2(2.08165e-12, 40)
 layout_mode = 2
@@ -61,6 +63,7 @@ size_flags_horizontal = 3
 theme_override_styles/panel = SubResource("StyleBoxFlat_qk7sj")
 
 [node name="PlayerNameField" type="TextEdit" parent="VBoxContainer/AddPlayerContainer" unique_id=332535327]
+unique_name_in_owner = true
 custom_minimum_size = Vector2(2.08165e-12, 40)
 layout_mode = 2
 size_flags_horizontal = 3
@@ -68,6 +71,7 @@ placeholder_text = "Player name"
 script = ExtResource("7_qsdfy")
 
 [node name="AddPlayerButton" type="Button" parent="VBoxContainer/AddPlayerContainer" unique_id=245001313]
+unique_name_in_owner = true
 custom_minimum_size = Vector2(2.08165e-12, 40)
 layout_mode = 2
 text = "Add"
@@ -84,6 +88,7 @@ size_flags_vertical = 15
 horizontal_scroll_mode = 0
 
 [node name="PlayersListVBoxContainer" type="VBoxContainer" parent="VBoxContainer/ScrollContainer" unique_id=1000000002]
+unique_name_in_owner = true
 layout_mode = 2
 size_flags_horizontal = 3
 size_flags_vertical = 15