Made a new "src" folder that will contain the source code files, like all the GDScript and scene files. Please read this for more details: https://www.gdquest.com/docs/guidelines/best-practices/godot-gdscript/
It made no sense to keep scenes separate from their scripts. More file organizing will follow soon.
Besides the timeline buttons and color switch button being ready to have their changed shortcuts (when we implement them for these buttons) in their hint tooltips, there is no new functionality. This is merely to make the lives of translators easier.
This is the final commit of weird string IDs being replaced to actual sentences in Translations.pot
Made AboutDialog.tscn a scene of its own, added logo icons and names for the developer team, contributors and donors. Feel free to change/add things related to you!