Update resolution note message shortcut instruction (#4482)

# What this PR does

Updates the instruction that pops up when clicking the `Add Resolution
notes` button in Slack with an up-to-date GIF.

## Checklist

- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] Added the relevant release notes label (see labels prefixed w/
`release:`). These labels dictate how your PR will
    show up in the autogenerated release notes.

engine/apps/slack/scenarios/resolution_note.py

@@ -324,6 +324,7 @@ class ResolutionNoteModalStep(AlertGroupActionsMixin, scenario_step.ScenarioStep
     REQUIRED_PERMISSIONS = [RBACPermission.Permissions.CHATOPS_WRITE]
     RESOLUTION_NOTE_TEXT_BLOCK_ID = "resolution_note_text"
     RESOLUTION_NOTE_MESSAGES_MAX_COUNT = 25
+    MESSAGE_SHORTCUT_INSTRUCTION = "You can add thread messages as resolution notes using the message shortcut"
 
     class ScenarioData(typing.TypedDict):
         resolution_note_window_action: str
@@ -576,29 +577,17 @@ class ResolutionNoteModalStep(AlertGroupActionsMixin, scenario_step.ScenarioStep
 
         if not blocks:
             # there aren't any resolution notes yet, display a hint instead
-            link_to_instruction = create_engine_url("static/images/postmortem.gif")
             blocks = [
-                DIVIDER,
-                typing.cast(
-                    Block.Section,
-                    {
-                        "type": "section",
-                        "text": {
-                            "type": "mrkdwn",
-                            "text": ":bulb: You can add a message to the resolution notes via context menu:",
-                        },
-                    },
-                ),
                 typing.cast(
                     Block.Image,
                     {
                         "type": "image",
                         "title": {
                             "type": "plain_text",
-                            "text": "Add a resolution note",
+                            "text": self.MESSAGE_SHORTCUT_INSTRUCTION,
                         },
-                        "image_url": link_to_instruction,
-                        "alt_text": "Add to postmortem context menu",
+                        "image_url": create_engine_url("static/images/resolution_note.gif"),
+                        "alt_text": self.MESSAGE_SHORTCUT_INSTRUCTION,
                     },
                 ),
             ]
@@ -606,9 +595,7 @@ class ResolutionNoteModalStep(AlertGroupActionsMixin, scenario_step.ScenarioStep
         return blocks
 
     def get_invite_bot_tip_blocks(self, channel: str) -> Block.AnyBlocks:
-        link_to_instruction = create_engine_url("static/images/postmortem.gif")
-        blocks: Block.AnyBlocks = [
-            DIVIDER,
+        return [
             typing.cast(
                 Block.Context,
                 {
@@ -616,15 +603,12 @@ class ResolutionNoteModalStep(AlertGroupActionsMixin, scenario_step.ScenarioStep
                     "elements": [
                         {
                             "type": "mrkdwn",
-                            "text": f":bulb: To include messages from thread to resolution note `/invite` Grafana OnCall to "
-                            f"<#{channel}>. Or you can add a message via "
-                            f"<{link_to_instruction}|context menu>.",
+                            "text": f"To enable this feature, `/invite` Grafana OnCall to <#{channel}>.",
                         },
                     ],
                 },
             ),
         ]
-        return blocks
 
 
 class ReadEditPostmortemStep(ResolutionNoteModalStep):

engine/apps/slack/tests/test_scenario_steps/test_resolution_note.py

@@ -27,26 +27,15 @@ def test_get_resolution_notes_blocks_default_if_empty(
 
     blocks = step.get_resolution_notes_blocks(alert_group, "", False)
 
-    link_to_instruction = create_engine_url("static/images/postmortem.gif")
     expected_blocks = [
-        {
-            "type": "divider",
-        },
-        {
-            "type": "section",
-            "text": {
-                "type": "mrkdwn",
-                "text": ":bulb: You can add a message to the resolution notes via context menu:",
-            },
-        },
         {
             "type": "image",
             "title": {
                 "type": "plain_text",
-                "text": "Add a resolution note",
+                "text": SlackResolutionNoteModalStep.MESSAGE_SHORTCUT_INSTRUCTION,
             },
-            "image_url": link_to_instruction,
-            "alt_text": "Add to postmortem context menu",
+            "image_url": create_engine_url("static/images/resolution_note.gif"),
+            "alt_text": SlackResolutionNoteModalStep.MESSAGE_SHORTCUT_INSTRUCTION,
         },
     ]
     assert blocks == expected_blocks