docs(noUndeclaredDependencies,useImportExtensions): add note about LS…

…P configs (#3173)

crates/biome_js_analyze/src/lint/nursery/no_undeclared_dependencies.rs

@@ -12,6 +12,9 @@ declare_rule! {
     ///
     /// The rule ignores imports using a protocol such as `node:`, `bun:`, `jsr:`, `https:`.
     ///
+    /// To ensure that Visual Studio Code uses relative imports when it automatically imports a variable,
+    /// you may set [`typescript.preferences.importModuleSpecifier`](https://code.visualstudio.com/updates/v1_24#_preferences-for-auto-imports-and-generated-code) to `relative`.
+    ///
     /// ## Examples
     ///
     /// ### Invalid

crates/biome_js_analyze/src/lint/nursery/use_import_extensions.rs

@@ -19,7 +19,10 @@ declare_rule! {
     /// Tooling also benefits from explicit file extensions, because they do not need to guess which
     /// file to resolve.
     ///
-    /// Rule checks static imports and dynamic imports calls such as `import()` and `require()`.
+    /// The rule checks static imports and dynamic imports calls such as `import()` and `require()`.
+    ///
+    /// To ensure that Visual Studio Code adds the file extension when it automatically imports a variable,
+    /// you may set [`javascript.preferences.importModuleSpecifierEnding` and `typescript.preferences.importModuleSpecifierEnding`](https://code.visualstudio.com/docs/getstarted/settings) to the desired file extension.
     ///
     /// ## Examples
     ///