UI fixes

Summary:
This is a collection of small UI fixes for the network plugin:

- image maxWidth is set to 100% to not cause vertical scrolling
- Panels now have horizontal scrollbars, if their content overflows
- fixing missing icon for failed network requests
- removing position sticky from table headers as it was not used and causing some rendering issues and performance problems
- Adding a `label` and `grow` option to the `Select`-component which is used in the sidebar of the network plugin.

Reviewed By: passy

Differential Revision: D12956336

fbshipit-source-id: 6e7e9cf97c058a2ff626576d4afdc6df65007ea1

src/plugins/network/index.js

@@ -207,7 +207,7 @@ export default class extends FlipperPlugin<State, *, PersistedState> {
             this.state.selectedIds ? new Set(this.state.selectedIds) : null
           }
         />
-        <DetailSidebar>{this.renderSidebar()}</DetailSidebar>
+        <DetailSidebar width={500}>{this.renderSidebar()}</DetailSidebar>
       </FlexColumn>
     );
   }
@@ -384,7 +384,7 @@ class StatusColumn extends PureComponent<{
     let glyph;
 
     if (children != null && children >= 400 && children < 600) {
-      glyph = <Icon name="stop-solid" color={colors.red} />;
+      glyph = <Icon name="stop" color={colors.red} />;
     }
 
     return (