fix markRead using timestamp of now when scroll to bottom

app/sql.js

@@ -1185,7 +1185,6 @@ function updateToLokiSchemaVersion15(currentVersion, db) {
   db.transaction(() => {
     db.exec(`
       DROP TABLE pairingAuthorisations;
-      DROP TABLE ${MESSAGES_FTS_TABLE};
       DROP TRIGGER messages_on_delete;
       DROP TRIGGER messages_on_update;
     `);

ts/components/session/conversation/SessionMessagesListContainer.tsx

@@ -174,7 +174,7 @@ class SessionMessagesListContainerInner extends React.Component<Props> {
     }
 
     if ((forceIsOnBottom || this.getScrollOffsetBottomPx() === 0) && isElectronWindowFocused()) {
-      void conversation.markRead(messagesProps[0].propsForMessage.receivedAt || 0).then(() => {
+      void conversation.markRead(Date.now()).then(() => {
         window.inboxStore?.dispatch(markConversationFullyRead(conversationKey));
       });
     }
@@ -372,7 +372,7 @@ class SessionMessagesListContainerInner extends React.Component<Props> {
 
     const conversation = getConversationController().get(conversationKey);
     if (isElectronWindowFocused()) {
-      void conversation.markRead(messagesProps[0].propsForMessage.receivedAt || 0).then(() => {
+      void conversation.markRead(Date.now()).then(() => {
         window.inboxStore?.dispatch(markConversationFullyRead(conversationKey));
       });
     }

ts/models/conversation.ts

@@ -198,7 +198,10 @@ export class ConversationModel extends Backbone.Model<ConversationAttributes> {
     });
     this.throttledNotify = _.debounce(this.notify, 500, { maxWait: 1000, trailing: true });
     //start right away the function is called, and wait 1sec before calling it again
-    const markReadDebounced = _.debounce(this.markReadBouncy, 1000, { leading: true });
+    const markReadDebounced = _.debounce(this.markReadBouncy, 1000, {
+      leading: true,
+      trailing: true,
+    });
     // tslint:disable-next-line: no-async-without-await
     this.markRead = async (newestUnreadDate: number) => {
       const lastReadTimestamp = this.lastReadTimestamp;
@@ -972,7 +975,7 @@ export class ConversationModel extends Backbone.Model<ConversationAttributes> {
     let allUnreadMessagesInConvo = (await this.getUnread()).models;
 
     const oldUnreadNowRead = allUnreadMessagesInConvo.filter(
-      (message: any) => message.get('received_at') <= newestUnreadDate
+      message => (message.get('received_at') as number) <= newestUnreadDate
     );
 
     let read = [];