Delphi Entity Menus

- Added automatic plugin updater. - Expanded tooltip API

# API - Renamed `getInlineStyle()` to `getStyle()` to better reflect browser APIs. - Fixed invalid links in Javadoc. - Updated `NodeFlag.TOOLTIP` javadoc. - Added `TagNames.TOOLTIP` constant. # General - Added `tooltip` event for when an element's tooltip element is changed. - Added default styling for disabled `button` elements. - Can now load tooltips from XML by setting `role="tooltip"` on an element. - Improved tooltip handling. - Changed `tooltip` element default styling to have white text and slightly thicker borders. - Added info that was missing from `/delphi debug dump-page` command output. - Fixed tooltip flicker. - Fixed an issue where either an element's `width` or `flex-basis` would become negative - Fixed how Delphi detects what element you're hovering over. - Fixed some render elements not being cleaned up and removed when their DOM element was removed. - Removed unused `scroll` event (Impossible to support given how Minecraft's client and server communication works) # Devtools - Added "Box" tab to devtools, it lets you view the box model of a selected element, showing you the margin, outline, padding, size, inner size and position of an element. - Added ability to scroll through a page's XML in the element tree tab, instead of just being limited to the first 23 lines. - Center tab names in devtools. - Devtools, style tab can now disable/enable individual styles. - Added ability to force `:hover` and `:active` states for selected elements in Styles tab. - Added ability to modify an element's inline style in the Styles tab. - Added highlighting when hovering over elements in the Elements tab. (Highlights appear on the page the devtools is for) - Fixed issue loading the styles tab when variables were used in the CSS. - Fixed styles tab not resetting when changing to other tab or page. # CSS Engine - Fixed some errors with parsing nested selectors and properties. - Fixed `margin-inline-end` being used as the value for `margin-inline-start`. - Fixed incorrect class selector testing. - Fixed `inline-flex` not using FlexBox layout lol. - Fixed broken styles after modifying inline style of an element before said element was appended to the document tree.

- Add `inline-flex` as a keyword for `display` - Add a basic "Styles" tab to Devtools. - Fix an error with cancellable events. - Correctly update element outline and border when changing style. - Updated Style API. - Fix visual twitch with italic or bold text. - Fix min/max size CSS properties not doing anything. - Missing semicolons in CSS will be treated as warnings instead of errors. - Improve element tooltip handling - Add commands for managing an open page's viewers - Use `delphi.commands.devtools` as permission for devtools command - Add default styling for `<sup>` and `<sub>` elements.

## Changes - Add FlexBox support - Move layout engine to its own module - Refactor layout engine - Added `vertical-align` CSS property. - Added `flex-grow` CSS property - Added `flex-shrink` CSS property. - Added `gap` CSS property. - Added `row-gap` and `column-gap` CSS properties. - Added `align-self` CSS property - When performing math operations with `px` units, convert them to world units before calculation. - Fix wrong input type used when checking if input should be validated as number. - Added bStats metrics support - Fixed a tooltip graphical issue - Properly update depth and things when calling `setTitleNode()`

## Additions - Replace Bukkit's conversations for input elements with new Dialogs - Added `getSource()` method to stylesheets - Added `/delphi devtools` and `/delphi devtools <menu name>` for opening devtools easily ## Changes - Add support for `prompt` attribute on `<input/>` elements - Update translations - Add translations support to devtools - Made `input` event cancellable - Update devtools ## Fixes - Fix wrong method call that resulted in NPE in `ViewBuilderImpl`

- Remove very inconvenient `scripting.properties` file required for enabling JS support. - Fix `!important` not parsing in CSS - Add `flex-basis` property for future Flexbox implementation

## Main Changes * Added JavaScript support with GraalVM's Polyglot (GraalVM itself is not required) * Added `<canvas>` which allows developers to draw images * Switched to new XML parser for more lenient, HTML-like parsing, even the most malformed XML should now be parsed * Added support for custom DOM events * Integrated Scheduler API into JS * Added color functions to JS * Optimize canvas elements to use the fewest number of entities possible ## Bug Fixes * Fix the `Color.hsva` function being completely broken * Don't print attribute values of attributes no-value attributes and properly escape attribute values * Fix the area between pixels of Canvas elements flickering * Fix plugin messages not being correctly translated * Fix issue with event listeners * Fix weird twitch with text nodes when their content changed