Feature/saajan persona (#3)

* feat: add template based email content (html + plaintext fallback)

* feat: init saajan component

* feat: add aesthetic noise background and implement Saajan component in register and login

* feat: add post seal modal for vault

* refactor: add proper props interfaces

* refactor: expose props on ui components

* feat: add ssajan in lots of flows

* fix: remove render test with no value and add aria helper for btn identification

* refactor: update email notification to account for proper arguments

* refactor:  refactor E2E auth helper and mail parsing logic

---------

Co-authored-by: ramvignesh-b <ramvignesh-b@github.com>

frontend/src/pages/Editor.tsx

@@ -293,7 +293,7 @@ export default function Editor() {
       setLetterStatus(status);
       setLastSavedPulseTick((prev) => prev + 1);
 
-      if (status === "SEALED") {
+      if (status === "SEALED" || status === "VAULT") {
         setSealedTargetId(targetId);
       }
       setSaveOverlay("saved");
@@ -419,7 +419,11 @@ export default function Editor() {
           />
         )}
         {sealedTargetId && (
-          <PostSealModal sealedTargetId={sealedTargetId} navigate={navigate} />
+          <PostSealModal
+            sealedTargetId={sealedTargetId}
+            navigate={navigate}
+            type={status === "VAULT" ? "VAULT" : "KEPT"}
+          />
         )}
 
         <div className="max-w-180 mx-auto px-1 md:px-0">