- Made small changes to better fit the style of the project.
- Fixed a bug that would result in a crash when details were applied with the bulk info manager.
- Improved the Bulk Manager UI by adding the list-add and list-remove icons, to better fit it to Manuskript's style. Also added tooltips.
-Changed the selection mode to extended selection on the lstCharacters tree-view. This will not affect anything else other than the "detailed info" rows. Every other change to a character's descriptions, motivations and such only affect the last selected one.
-Made a method to get all the IDs of the selected characters.
-Added a character-info dialog UI. Originally, adding information worked by adding a placeholder and then changing it. Users never want to just add a placeholder without initialising the values. And the bulk-adding only works this way.
When creating a new character, sets an appropriate importance level.
* If a character is selected, the new character has the same importance level.
* If a top-level importance level is selected, the new character has that level
* Otherwise, the importance level is zero
