fix: replace unsupported Hrkt unicode property to Hira and Kana (#705)

# PR Checklist
- [x] Have you checked if it works normally in all models? *Ignore this
if it doesn't use models.*
- [x] Have you checked if it works normally in all web, local, and node
hosted versions? If it doesn't, have you blocked it in those versions?
- [ ] Have you added type definitions?

# Description
`Auto Regenerate On Characterset` feature can throw the following error
when `Hrkt` is enabled:
```
Error while parsing chat message: true, Invalid regular expression: /\p{Script=Hrkt}/gu: Invalid property name
```

This PR fixes regex parsing issues with unicode property:
1. Replaces unsupported `Hrkt` property with separate `Hira` and `Kana`
properties
2. Updates preview text for each property to match the changes

src/lib/Setting/Pages/AdvancedSettings.svelte

@@ -27,7 +27,8 @@
         'Deva',
         'Cyrl',
         'Beng',
-        'Hrkt',
+        'Hira',
+        'Kana',
         'Telu',
         'Hang',
         'Taml',
@@ -47,7 +48,8 @@
         'Deva': "अआइ",
         'Cyrl': "АБВ",
         'Beng': "অআই",
-        'Hrkt': "あア",
+        'Hira': "あい",
+        'Kana': "アイ",
         'Telu': "అఆఇ",
         'Hang': "가나다",
         'Taml': "அஆஇ",