tests: purge editor drafts after a run

Tests that opened the card modal left hyprcrd-editor-draft:* entries
in localStorage. The pre-run purge cleared them before the baseline
backup, but anything the tests wrote during the run stayed behind —
the user's next card open then fired "unsaved draft from 0 min ago,
restore?" for a non-edit they didn't make. Repeat the purge after
restore so the runner closes with a clean slate.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

electron/package.json

@@ -1,6 +1,6 @@
 {
   "name": "hyprcrd",
-  "version": "1.9.9",
+  "version": "1.9.10",
   "description": "hyprcrd — self-hosted card manager",
   "main": "main.js",
   "scripts": {