build(types): disable preserveSymlinks in tsconfig

PNPM uses symlinks by default for `node_modules`
(see the [`node-linker`][1] options), which doesn't work with
[TypeScript's `preserveSymlinks: true`][2] setting.

This meant that the `d3-transition` types were not applying properly in
our code.

[1]: https://pnpm.io/npmrc#node-linker
[2]: https://www.typescriptlang.org/tsconfig/#preserveSymlinks

packages/mermaid/src/diagrams/class/classDb.ts

@@ -389,7 +389,6 @@ const setupToolTips = function (element: Element) {
       // @ts-ignore - getBoundingClientRect is not part of the d3 type definition
       const rect = this.getBoundingClientRect();
 
-      // @ts-expect-error - Incorrect types
       tooltipElem.transition().duration(200).style('opacity', '.9');
       tooltipElem
         .text(el.attr('title'))
@@ -399,7 +398,6 @@ const setupToolTips = function (element: Element) {
       el.classed('hover', true);
     })
     .on('mouseout', function () {
-      // @ts-expect-error - Incorrect types
       tooltipElem.transition().duration(500).style('opacity', 0);
       const el = select(this);
       el.classed('hover', false);

packages/mermaid/src/diagrams/flowchart/flowDb.ts

@@ -425,7 +425,6 @@ const setupToolTips = function (element: Element) {
       }
       const rect = (this as Element)?.getBoundingClientRect();
 
-      // @ts-ignore TODO: fix this
       tooltipElem.transition().duration(200).style('opacity', '.9');
       tooltipElem
         .text(el.attr('title'))
@@ -435,7 +434,6 @@ const setupToolTips = function (element: Element) {
       el.classed('hover', true);
     })
     .on('mouseout', function () {
-      // @ts-ignore TODO: fix this
       tooltipElem.transition().duration(500).style('opacity', 0);
       const el = select(this);
       el.classed('hover', false);

packages/parser/tsconfig.json

@@ -4,7 +4,6 @@
     "rootDir": ".",
     "outDir": "./dist",
     "allowJs": false,
-    "preserveSymlinks": false,
     "strictPropertyInitialization": false
   },
   "include": ["./src/**/*.ts", "./tests/**/*.ts"],

tsconfig.json

@@ -75,7 +75,7 @@
     // "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
     // "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
     "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */,
-    "preserveSymlinks": true /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */,
+    // "preserveSymlinks": true /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */,
     "forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */,
 
     /* Type Checking */