chore: disconnected subject should complete instead of unsubscribe

see: https://manishboge.medium.com/catching-those-leaks-a-deep-dive-into-angular-rxjs-subscription-management-strategies-5a95d0617100

Author: angelo-v

contacts/src/components/open-address-book/open-address-book.tsx

@@ -31,7 +31,7 @@ export class OpenAddressBook {
 
   disconnectedCallback() {
     this.disconnected$.next();
-    this.disconnected$.unsubscribe();
+    this.disconnected$.complete();
   }
 
   @Listen('pod-os:link')

elements/src/components/pos-app/pos-app.tsx

@@ -84,7 +84,7 @@ export class PosApp {
   disconnectedCallback() {
     this.unsubscribeSettings();
     this.disconnected$.next();
-    this.disconnected$.unsubscribe();
+    this.disconnected$.complete();
   }
 
   @Listen('pod-os:init')

elements/src/components/pos-container-contents/pos-container-contents.tsx

@@ -84,6 +84,6 @@ export class PosContainerContents implements ResourceAware {
 
   disconnectedCallback() {
     this.disconnected$.next();
-    this.disconnected$.unsubscribe();
+    this.disconnected$.complete();
   }
 }

elements/src/components/pos-list/pos-list.tsx

@@ -70,6 +70,6 @@ export class PosList implements PodOsAware, ResourceAware {
 
   disconnectedCallback() {
     this.disconnected$.next();
-    this.disconnected$.unsubscribe();
+    this.disconnected$.complete();
   }
 }

elements/src/components/pos-markdown-document/pos-markdown-document.tsx

@@ -83,7 +83,7 @@ export class PosMarkdownDocument {
 
   disconnectedCallback() {
     this.disconnected$.next();
-    this.disconnected$.unsubscribe();
+    this.disconnected$.complete();
   }
 
   /**

elements/src/components/pos-switch/pos-switch.tsx

@@ -108,6 +108,6 @@ export class PosSwitch implements ResourceAware {
 
   disconnectedCallback() {
     this.disconnected$.next();
-    this.disconnected$.unsubscribe();
+    this.disconnected$.complete();
   }
 }