Adds checked state to minimap button

src/webviews/apps/plus/graph/GraphWrapper.tsx

@@ -1312,9 +1312,11 @@ export function GraphWrapper({
 							</span>
 							<button
 								type="button"
+								role="checkbox"
 								className="action-button"
 								title="Toggle Minimap (Experimental)"
 								aria-label="Toggle Minimap (Experimental)"
+								aria-checked={graphConfig?.minimap ?? false}
 								onClick={handleOnToggleMinimap}
 							>
 								<span className="codicon codicon-graph-line action-button__icon"></span>

src/webviews/apps/plus/graph/graph.scss

@@ -281,6 +281,16 @@ button:not([disabled]),
 	}
 }
 
+.action-button[aria-checked] {
+	border: 1px solid transparent;
+}
+
+.action-button[aria-checked='true'] {
+	background-color: var(--vscode-inputOption-activeBackground);
+	color: var(--vscode-inputOption-activeForeground);
+	border-color: var(--vscode-inputOption-activeBorder);
+}
+
 .repo-access {
 	font-size: 1.1em;
 	margin-right: 0.2rem;