* Implement a first version of WithFloating and Portal
* Add outside slot for Portal
* Execute computePosition from WithFloating
* Set up a first example of new WithFloating with the Latex menu
* Use autoUpdate in WithFloating
* Create sveltelib/position
* Add event-store
* Use event-store in close-on-click
* Implement subscribeToUpdates
* Introduce sass/elevation
* Split close-on-click to closing-click and subscribe-trigger
* Have closing-* stores return a symbol
- This way they act more of an EventEmitter than a store
* Allow passing show store
* Remove styling on float on updatePosition removal
* Implement a nice border for dropdowns
* Apply different border and box-shadow to Popover in dark/light theme
* Fix Ctrl+Shift+T not working
* Satisfy formatters and tests
* Add copyright header
* move copyright header to top (dae)
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