Chat without character selected (#2757)

* WIP: Enable chatting without character selected

* Add burger menu item

* Neutral assistant chat space

* Revert "Neutral assistant chat space"

This reverts commit be2da4a629.

* Revert "Add burger menu item"

This reverts commit d4e8d990c1.

* Use simple ephemeral chats

* Only start a new assistant chat if not already in it

* Don't emit event not to clear pending files

* Allow edits, disable checkpoints and branches

* Exclude from tags, allow copy

* Allow hide/unhide

* Allow zooming avatar

* Suppress warning

* Rename neutral character

* Rename neutral back to Assistant

public/scripts/chats.js

@@ -125,8 +125,6 @@ function getConverter(type) {
  * @returns {Promise<void>}
  */
 export async function hideChatMessageRange(start, end, unhide) {
-    if (!getCurrentChatId()) return;
-
     if (isNaN(start)) return;
     if (!end) end = start;
     const hide = !unhide;