Update LVGL to v9.1.0

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+==========
+JavaScript
+==========
+
+With `lv_binding_js <https://github.com/lvgl/lv_binding_js>`__ you can
+write lvgl with JavaScript.
+
+It uses React's virtual DOM concept to manipulate lvgl UI components,
+providing a familiar React-like experience to users.
+
+**Code**
+
+**Code Running on Real Device**
+
+Table of Contents
+-----------------
+
+-  `Features <#features>`__
+-  `Demo <#demo>`__
+-  `Building <#building>`__
+-  `Components <#components>`__
+-  `Font <#font>`__
+-  `Animation <#animation>`__
+-  `Style <#style>`__
+-  `JSAPI <#jsapi>`__
+-  `Thanks <#thanks>`__
+
+Features
+--------
+
+-  Support all lvgl built-in components
+-  Fully support lvgl flex and grid style
+-  support most lvgl style, just write like html5 css
+-  support dynamic load image
+-  Fully support lvgl animation
+
+Demo
+----
+
+See the
+`demo <https://github.com/lvgl/lv_binding_js/tree/master/demo>`__ folder
+
+Building
+--------
+
+The following are developer notes on how to build lvgljs on your native
+platform. They are not complete guides, but include notes on the
+necessary libraries, compile flags, etc.
+
+lvgljs
+~~~~~~
+
+-  `ubuntu build Notes for sdl
+   simulator <https://github.com/lvgl/lv_binding_js/blob/master/doc/build/build-ubuntu-arm.md>`__
+-  `macos x86 build Notes for sdl
+   simulator <https://github.com/lvgl/lv_binding_js/blob/master/doc/build/build-macos-x86-simulator.md>`__
+-  `ubuntu build Notes for platform
+   arm <https://github.com/lvgl/lv_binding_js/blob/master/doc/build/build-ubuntu-x86-simulator.md>`__
+
+JS Bundle
+~~~~~~~~~
+
+-  `JS Bundle build
+   Notes <https://github.com/lvgl/lv_binding_js/blob/master/doc/build/js-bundle.md>`__
+
+Components
+----------
+
+-  `View <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/View.md>`__
+-  `Image <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Image.md>`__
+-  `Button <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Button.md>`__
+-  `Text <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Text.md>`__
+-  `Input <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Input.md>`__
+-  `Textarea <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Textarea.md>`__
+-  `Switch <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Switch.md>`__
+-  `Checkbox <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Checkbox.md>`__
+-  `Dropdownlist <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Dropdownlist.md>`__
+-  `ProgressBar <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/ProgressBar.md>`__
+-  `Line <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Line.md>`__
+-  `Roller <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Roller.md>`__
+-  `Keyboard <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Keyboard.md>`__
+-  `Calendar <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Calendar.md>`__
+-  `Chart <https://github.com/lvgl/lv_binding_js/blob/master/doc/component/Chart.md>`__
+
+Font
+----
+
+`Builtin-Symbol <https://github.com/lvgl/lv_binding_js/blob/master/doc/Symbol/symbol.md>`__
+
+Animation
+---------
+
+`Animation <https://github.com/lvgl/lv_binding_js/blob/master/doc/animate/animate.md>`__
+
+Style
+-----
+
+.. include::https://github.com/lvgl/lv_binding_js/blob/master/doc/style/position-size-layout.md
+
+-  `position-size-layout <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/position-size-layout.md>`__
+-  `boxing-model <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/boxing-model.md>`__
+-  `color <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/color.md>`__
+-  `flex <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/flex.md>`__
+-  `grid <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/grid.md>`__
+-  `font <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/font.md>`__
+-  `opacity <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/opacity.md>`__
+-  `display <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/display.md>`__
+-  `background <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/background.md>`__
+-  `scroll <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/scroll.md>`__
+-  `shadow <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/shadow.md>`__
+-  `recolor <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/recolor.md>`__
+-  `line <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/line.md>`__
+-  `transition <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/transition.md>`__
+-  `transform <https://github.com/lvgl/lv_binding_js/blob/master/doc/style/transform.md>`__
+
+JSAPI
+-----
+
+-  `network <https://github.com/lvgl/lv_binding_js/blob/master/doc/jsapi/network.md>`__
+-  `filesystem <https://github.com/lvgl/lv_binding_js/blob/master/doc/jsapi/fs.md>`__
+-  `dimension <https://github.com/lvgl/lv_binding_js/blob/master/doc/jsapi/dimension.md>`__
+
+Thanks
+------
+
+lvgljs depends on following excellent work
+
+`lvgl <https://github.com/lvgl/lvgl>`__: Create beautiful UIs for any
+MCU, MPU and display type `QuickJS <https://bellard.org/quickjs/>`__:
+JavaScript engine `libuv <https://github.com/libuv/libuv>`__: platform
+abstraction layer `curl <https://github.com/curl/curl>`__: HTTP client
+`txiki.js <https://github.com/saghul/txiki.js>`__: Tiny JavaScript
+runtime