feat: 增加是否展示菜单项图标的配置开关 (#1502)

* feat: 增加是否展示菜单项图标的配置开关

* fix(read-settings): 恢复被误删的 titleBarIconPosition 属性映射

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Co-authored-by: lyc <liuyichen@o-neg.com>

app/src/main/res/values/strings.xml

@@ -906,6 +906,7 @@
     <string name="restore_ignore">Bypass List</string>
     <string name="restore_ignore_summary">Ignore some contents while restoring</string>
     <string name="read_config">Reading Interface Settings</string>
+    <string name="show_menu_icon">Show Menu Item Icons</string>
     <string name="read_config_global_theme">Global &amp; Theme</string>
     <string name="read_config_layout_spacing">Layout &amp; Spacing</string>
     <string name="read_config_text_effects">Text &amp; Effects</string>