chore: version 1.2.0

Pins, filtered search, custom emojis and stickers, and the in-app restart
prompt. The prompt itself is only visible once an update is offered, so this
release is what makes it observable.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "backspace",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "private": true,
   "description": "Open, self-hosted communication platform \u2014 text, voice, video, and federation",
   "license": "AGPL-3.0-only",

packages/desktop/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@backspace/desktop",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "private": true,
   "license": "AGPL-3.0-only",
   "description": "Backspace",