Big changes...

- Added Droppy SVG icons
- Implemented Droppy-style Breadcrumb component
- Implemented a Dialog component
- Attempted transition effects on file explorer (not yet functional)
- Changed FileExplorer to take list of documents and current path via props.
- Various other cleanup etc.

cista-front/src/assets/svg/zoomin.svg

@@ -0,0 +1 @@
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