* Remove animation tab from the export dialog, unify it with the first tab
* Tidy up the UI using GridContainers
* Make ExportDialog a ConfirmationDialog and clean some code
* Make project a parameter in export methods
This will be useful in the future for exporting multiple projects at once via terminal arguments
* Add a layers option in the export dialog
Currently only visible layers and selected layers, need to add specific layer selection and handle group blending properly.
* Align everything to the left
* Change "directory" into "folder"
* Make animation direction affect spritesheets and multiple png exporting
Besides just gifs and apngs
* Minor code re-organization
* Keep spritesheet options when changing tab
* Use the Unicode multiplication sign in the dimension label
* Specific layer exporting with group blending support
* Change file format cursor mode to pointing hand instead of forbidden
* Add a new custom CollapsibleContainer node and use it for advanced settings in the export dialog
* Change Popups node into Control so its children will automatically inherit the theme
* Add the TextureRect of the CollapsibleContainer in the UIButtons group
* Update ExportDialog.gd
* Disable "Create new folder for each frame tag" when gif/apng is selected, and hide it completely on the spritesheet tab
* Fix "Create new folder for each frame tag" being visible even if the CollapsibleContainer's button is not pressed
* Show layer path for each layer in the export dialog's "Layers" option
* Update translations
* Update strings
If you press and hold an arrow button, the value will keep changing until you release. Replicates SpinBox's behavior. We should be able to replace any SpinBox now without losing any functionality.
Their visibility is toggleable. They also currently do not support echo events, since for some reason Godot only supports them for InputEventKey(s). I suppose this feature could be replicated with a Timer. Once this is done, we can replace all SpinBox nodes.
