Use new typst rendering in /test endpoint

showbits-thermal-printer/src/documents/text/mod.rs

@@ -0,0 +1,19 @@
+use serde::{Deserialize, Serialize};
+use showbits_typst::Typst;
+
+#[derive(Serialize, Deserialize)]
+pub struct Text {
+    pub text: String,
+    #[serde(default)]
+    pub force_wrap: bool,
+    #[serde(default)]
+    pub feed: bool,
+}
+
+impl From<Text> for Typst {
+    fn from(value: Text) -> Self {
+        super::typst_with_lib()
+            .with_json("/data.json", &value)
+            .with_main_file(include_str!("main.typ"))
+    }
+}