Fix typo in dependency.ts

Release-Notes: skip
Change-Id: I2641146a98383b9e9be637a45155fb714ec13d4f
diff --git a/polygerrit-ui/app/models/dependency.ts b/polygerrit-ui/app/models/dependency.ts
index d21d8b3..9f7398d 100644
--- a/polygerrit-ui/app/models/dependency.ts
+++ b/polygerrit-ui/app/models/dependency.ts
@@ -280,7 +280,7 @@
 }
 
 /**
- * A resolved dependency is valid within the econnectd lifetime of a component,
+ * A resolved dependency is valid within the connected lifetime of a component,
  * namely between connectedCallback and disconnectedCallback.
  */
 interface ResolvedDependency<T> {