[Story] EX LLS: Push/notification for LLS start

[mxandreas]

Description

• As Alice
• When my room is configured to send me a push/notification for all messages
• I want to (also) get a notification when Bob starts sharing his live location
• So that the Bob would not be surprised why I am not aware of his location

Acceptance criteria

• TBD

Dependencies

• None

Out of scope

• Nothing

Questions

• None

Subtasks

Android

iOS

Rust

Other

[mxandreas]

This requires MSC for new push rules as well as adding them to Synapse and then some support for it in SDK and clients, a gist has been created in here: https://gist.github.com/ara4n/5c4be906f47f2f9f802cf41ccd3818f1

[ara4n]

• MSC4505
• Synapse impl: Implement push for Live Location Share as per MSC4505 synapse#19954
• EXI impl: Implements push notifications for LLS via MSC4505 element-x-ios#5872
• EXA impl: Render push notifications for live location share starts (MSC4505) element-x-android#7203
• EW impl: Render a notification message for live location share start events (MSC4505) element-web#34247