fix(installer): 更新安装程序版本至0.3.7 Beta 9

docs(help): 更新about.hlp中的网站链接至新域名
refactor(help): 优化pkg_download_en.hlp的代码块显示格式
feat(imageview): 添加图像加载错误提示和注释说明
style(time): 修复帮助文档格式错误
feat(shell): 添加欢迎界面图形显示
test: 新增imageview和help文档的测试程序

data/computercraft/lua/rom/help/about.hlp

@@ -3,4 +3,4 @@ This help document is not complete.
 LeonOS's website:
 
 >>color blue
-wget run https://gh.catmak.name/https://raw.githubusercontent.com/Leonmmcoset/LeonOS/refs/heads/main/installer.lua
+https://leonkingdom.netlify.app/leonos/

data/computercraft/lua/rom/help/pkg_download_en.hlp

@@ -5,9 +5,9 @@ In LeonOS, you can use the `pkg` command to download and install software packag
 == Basic Usage ==
 
 Download and install a package:
-```
+>>color yellow
 pkg install <package_name>
-```
+>>color white
 
 == Command Options ==
 
@@ -20,60 +20,60 @@ The `pkg install` command supports the following options:
 == Usage Examples ==
 
 1. Install a package:
-```
+>>color yellow
 pkg install example-package
-```
+>>color white
 
 2. Force install a package:
-```
+>>color yellow
 pkg install --force example-package
-```
+>>color white
 
 3. Install a package with detailed information:
-```
+>>color yellow
 pkg install -v example-package
-```
+>>color white
 
 4. View help for `pkg install` command:
-```
+>>color yellow
 pkg install --help
-```
+>>color white
 
 == Search for Packages ==
 
 Before installing a package, you can search for available packages:
-```
+>>color yellow
 pkg search <search_keyword>
-```
+>>color white
 
 Example:
-```
+>>color yellow
 pkg search editor
-```
+>>color white
 
 == View Package Information ==
 
 Before installing a package, you can view detailed information about it:
-```
+>>color yellow
 pkg info <package_name>
-```
+>>color white
 
 Example:
-```
+>>color yellow
 pkg info example-package
-```
+>>color white
 
 == Update Packages ==
 
 You can update installed packages using the following command:
-```
+>>color yellow
 pkg update <package_name>
-```
+>>color white
 
 If you don't specify a package name, all installed packages will be updated:
-```
+>>color yellow
 pkg update
-```
+>>color white
 
 == Frequently Asked Questions ==