Bump Plotly.js version to 1.54.1

CHANGELOG.md

@@ -2,13 +2,22 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased] -
+## [Unreleased]
 ### Changed
 - [#793](https://github.com/plotly/dash-core-components/pull/793) Added title key (i.e. HTML `title` attribute) to option dicts in `dcc.Dropdown` `options[]` list property.
+
 ### Fixed
 - [#792](https://github.com/plotly/dash-core-components/pull/792) Improved the robustness of `dcc.Store` components, fixing [#456](https://github.com/plotly/dash-core-components/issues/456) whereby persistent storage could become corrupted, and fixing lifecycle issues that prevented adding `Store` components to the page after initial loading.
 - [#790](https://github.com/plotly/dash-core-components/pull/790) Fixed bug where the dcc.Dropdown dropdown was hidden by the dash_table.DataTable fixed rows and columns.
 
+### Updated
+- [#800](https://github.com/plotly/dash-core-components/pull/800)
+  - Upgraded plotly.js to [1.54.1](https://github.com/plotly/plotly.js/releases/tag/v1.54.1)
+  - [Feature release of Plotly.js 1.54.0](https://github.com/plotly/plotly.js/releases/tag/v1.54.0) which:
+    - Introduces new drag modes "drawline", "drawrect", "drawcircle", "drawopenpath", "drawclosedpath", adds optional modebar buttons for drawing & removing new shapes inside cartesian subplots, adds newshape and activeshape attributes to layout, and adds editable and fillrule attributes to layout.shapes[#4775](https://github.com/plotly/plotly.js/pull/4775)
+  - Add angle and allowoverlap attributes to marker of scattermapbox traces[#4575](https://github.com/plotly/plotly.js/pull/4575), [#4794](https://github.com/plotly/plotly.js/pull/4794)
+  - Also contains various other fixes
+
 ## [1.9.1] - 2020-04-10
 ### Changed
 - [#740](https://github.com/plotly/dash-core-components/pull/740) Keep components that are loading in the DOM, but not visible, as opposed to removing them entirely. This will ensure that the size of the component's container does not shrink or expand when the component goes into the loading state.