Add timestamp to data

src/data/snippets.json

@@ -2,6 +2,7 @@
     {
         "title": "Seconds since last pacman sync",
         "slug": "seconds-since-last-pacman-sync",
+        "timeAdded": 1652993100,
         "snippet": "echo $(expr $(date +%s) - $(grep -rn -A 1 %INSTALLDATE% /var/lib/pacman/local/*/desc | grep -oP '\\d{10,}$' | sort | tail -1))",
         "tags": [
             "archlinux",