chore: prepare release 1.15.1 (#739)

> [!IMPORTANT]
> Merging this PR will create a new release.

## Fixes

* Fix editing messages with custom emojis being converted into html
tags. ([#749](#749) by @7w1)
* Fix muted rooms appearing as standard unread rooms.
([#750](#750) by @7w1)
* Fix the call stack size crash on load when sliding sync is enabled.
([#748](#748) by @7w1)

Author: 7w1

.changeset/fix-emojis-edits.md

@@ -1,5 +1,13 @@
 # Sable Client Changelog
 
+## 1.15.1 (2026-05-05)
+
+### Fixes
+
+* Fix editing messages with custom emojis being converted into html tags. ([#749](https://github.com/SableClient/Sable/pull/749) by @7w1)
+* Fix muted rooms appearing as standard unread rooms. ([#750](https://github.com/SableClient/Sable/pull/750) by @7w1)
+* Fix the call stack size crash on load when sliding sync is enabled. ([#748](https://github.com/SableClient/Sable/pull/748) by @7w1)
+
 ## 1.15.0 (2026-05-05)
 
 ### Features

.changeset/fix-notifs-muted.md

@@ -1,6 +1,6 @@
 {
   "name": "sable",
-  "version": "1.15.0",
+  "version": "1.15.1",
   "description": "An almost stable Matrix client",
   "type": "module",
   "packageManager": "pnpm@10.32.1+sha512.a706938f0e89ac1456b6563eab4edf1d1faf3368d1191fc5c59790e96dc918e4456ab2e67d613de1043d2e8c81f87303e6b40d4ffeca9df15ef1ad567348f2be",