Add new UI components and functionality for member display

- Introduced a new image import for "陨落基围虾.jpg" to enhance visual assets.
- Created a Pause panel script to manage UI state transitions.
- Developed a Circle control for displaying avatars with customizable properties such as cyclotomy, colors, and border width.
- Implemented a ThankMember script to dynamically update member information including name, avatar, and description.

scripts/Statemachine/ThankMember.gd

@@ -0,0 +1,15 @@
+@tool
+extends VBoxContainer
+
+@export var memberName: String = "未命名成员"
+@export var memberAvatar: Texture2D = null
+@export var memberDescription: String = "未知描述"
+
+@onready var avatar: Circle = $"%avatar"
+@onready var nameLabel: Label = $"%name"
+@onready var descriptionLabel: Label = $"%description"
+
+func _process(_delta):
+	nameLabel.text = memberName
+	descriptionLabel.text = memberDescription
+	avatar.avatar = memberAvatar