#431 Port the Terminal themes

[Anonymous]

Originally created by: kristofferR

Goal

Port Terminal, Terminal Green, Terminal Amber and Terminal CRT into the catalog (#426). They need the message hooks (#425) for IRC-style lines.

Source (MIT)

darkpiv's fork https://github.com/darkpiv/fmess at 1774715: src-tauri/themes/terminal*.css (sources in themes-src/terminal/, JetBrains Mono OFL). Author: darkpiv. All four are dark only.

Port

• Rename hooks: data-fmess-sender*, -time, -date, -reacted → the Chatpane message marks; --fmess-handle* → --chatpane-me-handle*.
• Drop the title-bar strip and its "You have new mail" line (Chatpane has no such strip), and the #fmess-account rule.
• The cursor blinks forever: make it static.
• Build the four from one source plus palette files, as the fork does, so fixes land in all of them.

Testing

1:1 and group chats, replies, media-only messages, dates, reactions; sender names and times line up; Hide Names on.

Part of [#434].