Tree-view vertical scroll

[IanCStewart]

When in the tree-view while having a project folder open you're unable to scroll down to see all your files.

Reproduction Steps:

1. Open a project folder
2. Try to scroll down

Expected behavior:

Able to scroll vertical when needed in tree-view.

Observed behavior:

Everything out of the view port of the tree-view is unreachable.

Screenshots and GIFs

Atom version: 1.17.2 OS and version: MacOs Sierra 10.12.4

Installed packages:

├── Remote-FTP@0.10.7
├── atom-beautify@0.29.18
├── atom-live-server@2.1.2
├── atom-material-ui@1.3.9
├── busy-signal@1.3.0
├── emmet@2.4.3
├── intentions@1.1.2
├── language-babel@2.57.2
├── linter@2.1.2
├── linter-csslint@1.3.4
├── linter-eslint@8.1.5
├── linter-scss-lint@3.1.0
├── linter-ui-default@1.2.2
├── linter-xo@0.22.0
├── markdown-preview-plus@2.4.9
├── pigments@0.39.1
├── prettier-atom@0.26.0
├── seti-icons@1.4.3
└── seti-ui@1.8.0

Extra styling:

To make the tree-view usable again i added the following to my user stylesheet

.tool-panel.tree-view {
  overflow: auto;
}

[silvestreh]

Update to Material UI 2.0 😉