Introducing Import & Export Characters!

New additions and improvements:

1. Added import characters - you can now import your characters from a JSON file. Request Link. To import a character, click "+" to open the create character page, and click on the top right options dropdown -> import a character.
2. Added export characters - you can now export your characters to a JSON file. Request Link. The format for importing/exporting a character follows the following format

"{
  "char_image": "",
  "char_name": "",
  "char_greeting": "",
  "char_persona": "",
  "description": "",
  "world_scenario": "",
  "example_dialogue": "",
  "name": "",
  "personality": "",
  "scenario": "",
  "first_mes": "",
  "mes_example": "",
  "metadata": {
    "thumbs_up": "",
    "created": "",
    "modified":"",
    },
  },
}"

3. You can now clear the entire new character form by clicking the "Clear" button on the top right dropdown menu in the create character page.
4. When picking a persona when interacting with a character, it is persisted locally per that chat.
5. Added message thumb up reaction
6. Added character thumb up reactions