Move newline handling to MessageBodyBuilder

- Also add a insert method to reflect new design.

Signed-off-by: RMidhunSuresh <rmidhunsuresh@gmail.com>

src/domain/session/room/timeline/MessageBodyBuilder.js

@@ -1,9 +1,28 @@
+import { linkify } from "./linkify.js";
+
 export class MessageBodyBuilder {
 
     constructor(message = []) {
         this._root = message;
     }
 
+    fromText(text) {
+        const components = text.split("\n");
+        components.slice(0, -1).forEach(t => {
+            linkify(t, this.insert.bind(this));
+        });
+        const [last] = components.slice(-1);
+        linkify(last, this.insert.bind(this));
+    }
+
+    insert(text, isLink) {
+        if (!text.length) return;
+        if (isLink)
+            this.insertLink(text, text);
+        else
+            this.insertText(text);
+    }
+
     insertText(text) {
         if (text.length)
             this._root.push({ type: "text", text: text });