Refactor config.fish to use functions moved to functions folder

.config/fish/functions/push_tasks.fish

@@ -0,0 +1,10 @@
+function push_tasks -a token user -d 'Push tasks as a notification to your phone'
+  set tasks (task +READY export | jq 'sort_by(.urgency) | reverse | map(@text "\(.description)\nLink: \(.link)") | join("\n\n")')
+  set payload "{\"token\":\"$token\",\"user\":\"$user\",\"title\":\"Tasks\",\"message\":$tasks}"
+
+  curl \
+    -X POST \
+    -H 'Content-Type: application/json' \
+    -d $payload \
+    https://api.pushover.net/1/messages.json
+end