Add personal calendars

source/_data/data.json

@@ -101,6 +101,7 @@
     "label": "Název políčka",
     "placeholder": "Placeholder"
   },
+  "calendarData": "[{\"title\": \"event 1\", \"date\": \"2023-04-01\", \"url\": \"https://example.com\"}, {\"title\": \"event 2\", \"date\": \"2023-04-01\", \"url\": \"https://example.com\"}, {\"title\": \"event 3\", \"date\": \"2023-04-01\", \"url\": \"https://example.com\"}, {\"title\": \"event 4\", \"date\": \"2023-04-01\", \"url\": \"https://example.com\"}, {\"title\": \"event 5\", \"date\": \"2023-04-01\", \"url\": \"https://example.com\"}, {\"title\": \"event 2\", \"date\": \"2023-04-10\", \"url\": \"https://example.com\"}]",
   "greyColors": [
     {"cls": "grey-50", "hex": "#f7f7f7", "name": "Grey 50"},
     {"cls": "grey-100", "hex": "#f3f3f3", "name": "Grey 100"},