feat: Add lvgl display theme control (#1180)

* feat: Add lvgl display theme control

* fix: compiling errors

* move light/dark themes to lcd display

* fix compile errors

---------

Co-authored-by: Xiaoxia <terrence.huang@tenclass.com>

main/display/lvgl_display/lvgl_font.h

@@ -0,0 +1,31 @@
+#pragma once
+
+#include <lvgl.h>
+
+
+class LvglFont {
+public:
+    virtual const lv_font_t* font() const = 0;
+    virtual ~LvglFont() = default;
+};
+
+// Built-in font
+class LvglBuiltInFont : public LvglFont {
+public:
+    LvglBuiltInFont(const lv_font_t* font) : font_(font) {}
+    virtual const lv_font_t* font() const override { return font_; }
+
+private:
+    const lv_font_t* font_;
+};
+
+
+class LvglCBinFont : public LvglFont {
+public:
+    LvglCBinFont(void* data);
+    virtual ~LvglCBinFont();
+    virtual const lv_font_t* font() const override { return font_; }
+
+private:
+    lv_font_t* font_;
+};