feat(app): implement basic function

General
- 配置界面支持配置对象存储桶
- 快捷键进入截图
- 一键上传截图 & 复制截图链接

MacOS
- 状态栏指示器和应用图标

internal/infrastructure/display/display_other.go

@@ -0,0 +1,21 @@
+//go:build !darwin
+
+package display
+
+import "github.com/kbinani/screenshot"
+
+// Primary returns the dimensions of display 0. We currently assume a 1× DPR
+// because Wails on Windows / Linux already paints in physical pixels, so
+// CSS coordinates and capture coordinates coincide. If a user ever runs at
+// non-1× we will add a platform-specific scale lookup.
+func Primary() Info {
+	if screenshot.NumActiveDisplays() == 0 {
+		return Info{CSSWidth: 1440, CSSHeight: 900, Scale: 1}
+	}
+	b := screenshot.GetDisplayBounds(0)
+	return Info{
+		CSSWidth:  b.Dx(),
+		CSSHeight: b.Dy(),
+		Scale:     1,
+	}
+}