Refactor: Extract components

Dispose the dirty listener because we don't need it until the next save

Fix: Avoid marking dirty unnecessarily

Refactor: Extract editor create options

Feat: Add favicon

Refactor: Better structure for Editor and App

Feat: Add basic support for theming

Add autoprefixer

Add ESLint and Prettier checks

Feat: Support drag file to open

…Firefox

Chores: Add markdown samples

Fix #18

Fix: Improve Toolbar autohide on scroll

Avoid the laggy transition because of having opacity and backdrop in different elements

Fix: Improve Toolbar transition

Toggle Vim mode

Render the cursor below the text and remove the inner character so we have smoother transition.

Also hide the textarea

Fix: Improve editor cursor

There's a bunch of TODOs but yeah this should be a start

Feat: Add preview content

Fix #46

Refactor: Move some effects from App to Editor

Refactor: Move layout to prefs

Also add "here.md" sample which covers GFM better

Remove source maps

Feat: Add GFM support

Feat: Add tailwind theme for preview

Feat: Improve scrollbar styling

Fix: Improve typography

Refactor: Define theme colors in JS instead of CSS

Fix misc

Feat: Calculate editor typography based on size

Feat: Optimize editor line length

Feat: Add theme preference

Refactor: Add "scheme" field for theme

Previously we have an effect that will load a file's content into the editor when the handle is changed. This turns out to be difficult to handle the "new" and "save as" cases.

This PR removes the effect and use a more imperative approach, in which the action to load file content is handled manually in relevant handlers. For example, the handler that open a new file will also call "openFileInEditor" to update the editor right there.

Thank to the new approach, implementing "New" and "Save As" is now straightforward, and is also done in this PR

Refactor: Manually load file into editor

Fix #16

Feat: Warn for unsaved changes

Should be no breaking change:
- idb-keyval goes from 5 to 6 but it's mainly about the distribution types that we don't use
- prettier goes up a minor version but let just run it again

parcel-bundler/parcel#6784