Add UI components for Feed and Item displays, including SVG resources

- Introduced FeedCard and FieldShow scenes with corresponding GDScript files for managing feed and item display.
- Added SVG resources for banana and baseball items.
- Updated ItemStore to include mappings for item types and names in Chinese.
- Enhanced FieldShow and ItemShow scripts to dynamically update UI elements based on exported properties.
- Implemented a new Feed class for structured feed data handling.

components/UI/FieldShow.tscn

@@ -0,0 +1,18 @@
+[gd_scene load_steps=2 format=3 uid="uid://cw5ip3rw4r3pp"]
+
+[ext_resource type="Script" path="res://scripts/Statemachine/FieldShow.gd" id="1_gwocj"]
+
+[node name="FieldShow" type="HBoxContainer"]
+script = ExtResource("1_gwocj")
+value = "0"
+
+[node name="name" type="Label" parent="."]
+unique_name_in_owner = true
+layout_mode = 2
+text = "最大生命值"
+
+[node name="value" type="Label" parent="."]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_horizontal = 10
+text = "0"