[feature] Add logout button to sidebar (#48)

This one should probably be scrutinized a little more than my previous two.

For example, I don't know why I needed to do this: https://codeberg.org/prplecake/masto-fe-standalone/src/commit/1a1f48ceaa544650a8b8f50f8fa4e8c7cdc44c12/app/javascript/flavours/glitch/features/ui/index.jsx#L152

~~But, it appears to work.~~ It's live at https://masto-fe.compostintraining.club if you want to test it out.

~~Edit: it breaks stuff. Images don't load anymore...~~ Maybe that was just a network glitch...

Fixes #21.

Reviewed-on: https://codeberg.org/superseriousbusiness/masto-fe-standalone/pulls/48
Co-authored-by: prplecake <me@prplecake.com>
Co-committed-by: prplecake <me@prplecake.com>

app/javascript/flavours/glitch/features/ui/components/columns_area.jsx

@@ -55,6 +55,7 @@ export default class ColumnsArea extends ImmutablePureComponent {
     singleColumn: PropTypes.bool,
     children: PropTypes.node,
     openSettings: PropTypes.func,
+    onLogout: PropTypes.func,
   };
 
   // Corresponds to (max-width: $no-gap-breakpoint + 285px - 1px) in SCSS
@@ -139,7 +140,7 @@ export default class ColumnsArea extends ImmutablePureComponent {
   };
 
   render () {
-    const { columns, children, singleColumn, openSettings } = this.props;
+    const { columns, children, singleColumn, openSettings, onLogout } = this.props;
     const { renderComposePanel } = this.state;
 
     if (singleColumn) {
@@ -158,7 +159,7 @@ export default class ColumnsArea extends ImmutablePureComponent {
 
           <div className='columns-area__panels__pane columns-area__panels__pane--start columns-area__panels__pane--navigational'>
             <div className='columns-area__panels__pane__inner'>
-              <NavigationPanel onOpenSettings={openSettings} />
+              <NavigationPanel onOpenSettings={openSettings} onLogout={onLogout} />
             </div>
           </div>
         </div>