Flipped vertical offset: position is up, negative is down

Resolve #1122

Author: TrickyLeifa

src/courtroom.cpp

@@ -6447,7 +6447,7 @@ void Courtroom::on_pair_offset_changed(int value)
 
 void Courtroom::on_pair_vert_offset_changed(int value)
 {
-  char_vert_offset = value;
+  char_vert_offset = -value;
 }
 
 void Courtroom::on_witness_testimony_clicked()

src/emotes.cpp

@@ -291,7 +291,7 @@ void Courtroom::preview_emote(QString f_emote, kal::CharacterAnimationLayer::Emo
   emote_preview->show();
   emote_preview->raise();
   emote_preview->updateViewportGeometry();
-  emote_preview->display(current_char, f_emote, emoteType, ui_flip->isChecked(), ui_pair_offset_spinbox->value(), ui_pair_vert_offset_spinbox->value());
+  emote_preview->display(current_char, f_emote, emoteType, ui_flip->isChecked(), ui_pair_offset_spinbox->value(), -ui_pair_vert_offset_spinbox->value());
 }
 
 void Courtroom::on_emote_left_clicked()