Add AB to mermaid graph ecosystem.md

Author: marc-vdm

source/content/overview/ecosystem.md

@@ -30,6 +30,8 @@ mindmap
         unfold
     id(💻 WebApp)
         Panel WebApp
+    id(🖥️ USER INTERFACE)
+       Activity Browser
 ```
 
 ## Core Brightway Libraries
@@ -93,4 +95,4 @@ mindmap
 | Project | Authors | Development | Contributors | Stargazers |
 | ------- | ------- | ----------- | ------------ | ---------- |
 | [`lca-global-sensitivity-analysis`](https://github.com/bsteubing/lca-global-sensitivity-analysis) | [bsteubing](https://github.com/bsteubing) | ![GitHub last commit](https://img.shields.io/github/last-commit/bsteubing/lca-global-sensitivity-analysis?logo=GitHub) | ![GitHub contributors](https://img.shields.io/github/contributors/bsteubing/lca-global-sensitivity-analysis?logo=GitHub) | ![GitHub Repo stars](https://img.shields.io/github/stars/bsteubing/lca-global-sensitivity-analysis?style=social) |
-| [`modular-lca`](https://github.com/bsteubing/modular-lca) | [bsteubing](https://github.com/bsteubing) | ![GitHub last commit](https://img.shields.io/github/last-commit/bsteubing/modular-lca?logo=GitHub) | ![GitHub contributors](https://img.shields.io/github/contributors/bsteubing/modular-lca?logo=GitHub) | ![GitHub Repo stars](https://img.shields.io/github/stars/bsteubing/modular-lca?style=social) |
+| [`modular-lca`](https://github.com/bsteubing/modular-lca) | [bsteubing](https://github.com/bsteubing) | ![GitHub last commit](https://img.shields.io/github/last-commit/bsteubing/modular-lca?logo=GitHub) | ![GitHub contributors](https://img.shields.io/github/contributors/bsteubing/modular-lca?logo=GitHub) | ![GitHub Repo stars](https://img.shields.io/github/stars/bsteubing/modular-lca?style=social) |