fix: normalize "in less than a minute" to "now" in chat list timestamp (#13874)

app/javascript/shared/helpers/specs/timeHelper.spec.js

@@ -54,6 +54,7 @@ describe('#dateFormat', () => {
 describe('#shortTimestamp', () => {
   // Test cases when withAgo is false or not provided
   it('returns correct value without ago', () => {
+    expect(shortTimestamp('in less than a minute')).toEqual('now');
     expect(shortTimestamp('less than a minute ago')).toEqual('now');
     expect(shortTimestamp('1 minute ago')).toEqual('1m');
     expect(shortTimestamp('12 minutes ago')).toEqual('12m');

app/javascript/shared/helpers/timeHelper.js

@@ -68,6 +68,7 @@ export const shortTimestamp = (time, withAgo = false) => {
   const suffix = withAgo ? ' ago' : '';
   const timeMappings = {
     'less than a minute ago': 'now',
+    'in less than a minute': 'now',
     'a minute ago': `1m${suffix}`,
     'an hour ago': `1h${suffix}`,
     'a day ago': `1d${suffix}`,