new UI with option to chat about the current page

translatable default message

When no message is given in the chat syntax, the default is now taken
from the language file.

syntax component to ignore parts of a page while indexing

add send button

Some people said they're not clear how to send messages, so a button was
added. Pressing Enter still works. The entry was changed to a textarea
making longer questions easier. Shift-

add send button

Some people said they're not clear how to send messages, so a button was
added. Pressing Enter still works. The entry was changed to a textarea
making longer questions easier. Shift-Enter can be used to add line
breaks. All button titles are now translatable.

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�� Automatic code style fixes

�� Automatic code style fixes

finish similar pages feature

First go at syntax to display similar pages