feat: implement app remove

See coop-cloud/go-abra#43.

cli/internal/common.go

@@ -42,3 +42,12 @@ var ContextFlag = &cli.StringFlag{
 	Aliases:     []string{"c"},
 	Destination: &Context,
 }
+
+var Force bool
+
+var ForceFlag = &cli.BoolFlag{
+	Name:        "force",
+	Value:       false,
+	Aliases:     []string{"f"},
+	Destination: &Force,
+}