basic batch support

Implements: https://todo.amehut.dev/~aleteoryx/sexchat/2

restrict self-sent CTCP handling

added spellcheck lang multiselect

this took so long, and was a good way to learn gtk. jesus though lmao

Implements: https://todo.amehut.dev/~aleteoryx/sexchat/11

remove gui_ulist_style option

this is a suboptimal solution, but a more advanced theming system should be worked on later

Fixes: https://todo.amehut.dev/~aleteoryx/sexchat/12

remove usermenu

fix 2f53a59

add msgid to xtext and scrollback

Merge branch 'bugfix'

always log tabs to disk scrollback

Merge branch 'bugfix'

fix topicbar changing to local user in dms

support for ircv3 echo-message

soju compatibility in DMs

hexchat-2.16.2 tree