Sanitize before inserting variables to innerHTML

[SabreCat]

We received this notice from Mozilla Add-ons:

To comply with the request, this PR adds calls to DOMPurify.sanitize() to strip any potentially problematic data from the variables being included in the innerHTML element on line 652 of chat_inPage.js.

[cTheDragons]

From my testing on Firefox 105.0.1 (64-bit) appears to be have been working.

The three issues are:

• Issue is the version is not updated in the extensions or Readme file. (Had to do a lot of double checking to make sure we have the right one)
• The Snowman transformation does not show correctly however I believe this is an existing bug.
• The Spooky transformation is not align correctly. However I believe this an existing bug.

Tested:

• Auto connect via the option at the top
• Retrieving messages from a guild/tavern
• Updated while chat is open
• add a message in a guild
• liking a message
• removing a like
• reporting a message
• checking info of a player
• Quick reply on name and avatar

• Keyboard shortcut of ctrl-Enter works
• Images displayed in chat
• Timeout of the chat messages show correctly.
• Transformations show in the chat for flower, star, spooky. As noted above Snowman does not show. Spooky is also shown off centre.

All tested on default options but did open up on large text no avatar to confirm these options work too.

[cTheDragons]

From my testing on 105.0.5151.0 (Developer Build) (64-bit) appears to be have been working.
Four Bugs:

• Error reported by the plugin Manifest version 2 is deprecated, and support will be removed in 2023. See https://developer.chrome.com/blog/mv2-transition/ for more details.
• Issue is the version is not updated in the extensions or Readme file. (Had to do a lot of double checking to make sure we have the right one)
• The Snowman transformation does not show correctly however I believe this is an existing bug.
• The Spooky transformation is not align correctly. However I believe this an existing bug.

Tested:

• Auto connect via the option at the top
• Retrieving messages from a guild/tavern
• Updated while chat is open
• add a message in a guild
• liking a message
• removing a like
• reporting a message
• checking info of a player
• Quick reply on name and avatar
• Keyboard shortcut of ctrl-Enter works
• Images displayed in chat
• Transformations show in the chat for flower, star, spooky. As noted above Snowman does not show. Spooky is also shown off centre.

All tested on default options but did open up on large text no avatar to confirm these options work too.