docs(linter): Update comment in lint.rs about default value for tsconfig path (#15530)

It wasn't previously clear what would be done if no tsconfig path was
provided, so this clarifies that.

This comment will be automatically used by the CLI and documentation
website:
https://oxc.rs/docs/guide/usage/linter/cli.html#basic-configuration

---------

Signed-off-by: Connor Shea <connor.james.shea@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: connorshea

apps/oxlint/src/command/lint.rs

@@ -114,7 +114,8 @@ pub struct BasicOptions {
     #[bpaf(long, short, argument("./.oxlintrc.json"))]
     pub config: Option<PathBuf>,
 
-    /// TypeScript `tsconfig.json` path for reading path alias and project references for import plugin
+    /// TypeScript `tsconfig.json` path for reading path alias and project references for import plugin.
+    /// If not provided, will look for `tsconfig.json` in the current working directory.
     #[bpaf(argument("./tsconfig.json"), hide_usage)]
     pub tsconfig: Option<PathBuf>,
 

tasks/website/src/linter/snapshots/cli.snap

@@ -14,7 +14,7 @@ expression: snapshot
 
   If not provided, Oxlint will look for `.oxlintrc.json` in the current working directory.
 - **`    --tsconfig`**=_`<./tsconfig.json>`_ &mdash; 
-  TypeScript `tsconfig.json` path for reading path alias and project references for import plugin
+  TypeScript `tsconfig.json` path for reading path alias and project references for import plugin. If not provided, will look for `tsconfig.json` in the current working directory.
 - **`    --init`** &mdash; 
   Initialize oxlint configuration with default values
 

tasks/website/src/linter/snapshots/cli_terminal.snap

@@ -10,7 +10,8 @@ Basic Configuration
                               * you can use comments in configuration files.
                               * tries to be compatible with the ESLint v8's format
         --tsconfig=<./tsconfig.json>  TypeScript `tsconfig.json` path for reading path alias and
-                              project references for import plugin
+                              project references for import plugin. If not provided, will look for
+                              `tsconfig.json` in the current working directory.
         --init                Initialize oxlint configuration with default values
 
 Allowing / Denying Multiple Lints