Replace VSCodeDivider and fix LibraryRow stories

Author: tuan-nguen

extensions/ql-vscode/src/stories/model-editor/LibraryRow.stories.tsx

@@ -220,6 +220,7 @@ LibraryRow.args = {
     ],
   },
   modifiedSignatures: new Set(["org.sql2o.Sql2o#Sql2o(String)"]),
+  selectedSignatures: new Set(["org.sql2o.Sql2o#Sql2o(String)"]),
   viewState: createMockModelEditorViewState({
     showGenerateButton: true,
   }),

extensions/ql-vscode/src/view/model-editor/LibraryRow.tsx

@@ -7,11 +7,11 @@ import { calculateModeledPercentage } from "../../model-editor/shared/modeled-pe
 import { percentFormatter } from "./formatters";
 import { Codicon } from "../common";
 import { Mode } from "../../model-editor/shared/mode";
-import { VSCodeDivider, VSCodeTag } from "@vscode/webview-ui-toolkit/react";
+import { VSCodeTag } from "@vscode/webview-ui-toolkit/react";
+import { VscodeButton, VscodeDivider } from "@vscode-elements/react-elements";
 import type { ModelEditorViewState } from "../../model-editor/shared/view-state";
 import type { AccessPathSuggestionOptions } from "../../model-editor/suggestions";
 import type { ModelEvaluationRunState } from "../../model-editor/shared/model-evaluation-run-state";
-import { VscodeButton } from "@vscode-elements/react-elements";
 
 const LibraryContainer = styled.div`
   background-color: var(--vscode-peekViewResult-background);
@@ -34,7 +34,7 @@ const TitleContainer = styled.button`
   cursor: pointer;
 `;
 
-const SectionDivider = styled(VSCodeDivider)`
+const SectionDivider = styled(VscodeDivider)`
   padding-top: 0.3rem;
   padding-bottom: 0.3rem;
 `;