OCT-2082: Epoch timeline: events for E6: client (#530)

## Description

## Definition of Done

1. [ ] If required, the desciption of your change is added to the [QA
changelog](https://www.notion.so/octantapp/Changelog-for-the-QA-d96fa3b411cf488bb1d8d9a598d88281)
2. [ ] Acceptance criteria are met.
3. [ ] PR is manually tested before the merge by developer(s).
    - [ ] Happy path is manually checked.
4. [ ] PR is manually tested by QA when their assistance is required
(1).
- [ ] Octant Areas & Test Cases are checked for impact and updated if
required (2).
5. [ ] Unit tests are added unless there is a reason to omit them.
6. [ ] Automated tests are added when required.
7. [ ] The code is merged.
8. [ ] Tech documentation is added / updated, reviewed and approved
(including mandatory approval by a code owner, should such exist for
changed files).
    - [ ] BE: Swagger documentation is updated.
9. [ ] When required by QA:
    - [ ] Deployed to the relevant environment.
    - [ ] Passed system tests.

---

(1) Developer(s) in coordination with QA decide whether it's required.
For small tickets introducing small changes QA assistance is most
probably not required.

(2) [Octant Areas & Test
Cases](https://docs.google.com/spreadsheets/d/1cRe6dxuKJV3a4ZskAwWEPvrFkQm6rEfyUCYwLTYw_Cc).

client/src/constants/milestones.ts

@@ -201,5 +201,36 @@ export default function getMilestones(): Milestone[] {
       id: 'e6-epoch-starts',
       label: i18n.t('views.projects.projectsTimelineWidget.epochStarts', { epoch: 'Six' }),
     },
+    // 2024-10-27 timezone changes from UTC+00200 to UTC+00100.
+    {
+      from: new Date('2024-11-18T17:00:00+0100'),
+      id: 'e6-applications-open',
+      label: i18n.t('views.projects.projectsTimelineWidget.applicationsOpen'),
+      to: new Date('2024-12-05T23:59:00+0100'),
+    },
+    {
+      from: new Date('2024-12-10T23:59:00+0100'),
+      id: 'e6-project-updates-close',
+      label: i18n.t('views.projects.projectsTimelineWidget.projectUpdatesClose'),
+    },
+    {
+      from: new Date('2024-12-12T17:00:00+0100'),
+      id: 'e6-snapshot-vote',
+      label: i18n.t('views.projects.projectsTimelineWidget.snapshotVote'),
+      shouldUseThirdPersonSingularVerb: true,
+      to: new Date('2024-12-17T23:59:00+0100'),
+    },
+    {
+      from: new Date('2025-01-11T17:00:00+0100'),
+      id: 'e6-allocation-window',
+      label: i18n.t('views.projects.projectsTimelineWidget.allocationWindow'),
+      shouldUseThirdPersonSingularVerb: true,
+      to: new Date('2025-01-25T17:00:00+0100'),
+    },
+    {
+      from: new Date('2025-01-11T17:00:00+0100'),
+      id: 'e7-epoch-starts',
+      label: i18n.t('views.projects.projectsTimelineWidget.epochStarts', { epoch: 'Seven' }),
+    },
   ];
 }