Configure ESLint to ignore unused variables

Update ESLint configuration to ignore unused variables with specific
patterns. Also, enable empty catch blocks and disable strict `any` type
and exhaustive `deps` checks for React hooks.

eslint.config.js

@@ -19,5 +19,18 @@ export default tseslint.config([
       ecmaVersion: 2020,
       globals: globals.browser,
     },
+    rules: {
+      '@typescript-eslint/no-unused-vars': [
+        'error',
+        {
+          argsIgnorePattern: '^_',
+          varsIgnorePattern: '^_',
+          caughtErrorsIgnorePattern: '^_',
+        },
+      ],
+      'no-empty': ['error', { allowEmptyCatch: true }],
+      '@typescript-eslint/no-explicit-any': 'off',
+      'react-hooks/exhaustive-deps': 'off',
+    },
   },
 ])

src/r2tab.tsx

@@ -146,7 +146,7 @@ export const R2Tab = forwardRef<R2TabHandle, R2TabProps>(({ pkg, file, active },
         setr2Writer(stdin);
 
         let cancelController: AbortController | null = null;
-        let history: string[] = [];
+        const history: string[] = [];
         let historyIndex = -1;
         let currentInput = '';
         onDataDisposableRef.current?.dispose();
@@ -420,7 +420,7 @@ function showLinkPopup(event: MouseEvent, _text: string) {
 
     const popupHeight = popup.offsetHeight;
     if (event.clientY + 25 + popupHeight > container.clientHeight) {
-        let y = event.clientY - 25 - popupHeight;
+        const y = event.clientY - 25 - popupHeight;
         popup.style.top = (y < 0 ? 0 : y) + 'px';
     }
     _linkPopup = popup;
@@ -431,4 +431,4 @@ const linkHandler = {
     hover: showLinkPopup,
     leave: removeLinkPopup,
     allowNonHttpProtocols: true
-};
+};