Feat/unit tests (#16)

* feat: Unit test setup

* test: Add unit tests for TableRow, Pagination, and TableHeader components

- Introduced unit tests for TableRow component, covering rendering, expansion, and custom rendering.
- Added tests for Pagination component, validating navigation and page size changes.
- Implemented tests for TableHeader component, ensuring correct rendering and filtering functionality.
- Included necessary imports and mock data for testing.

* feat: Add unit tests for SortType and defaultTheme

- Introduced unit tests for the SortType enum, verifying its values and count.
- Added tests for the defaultTheme structure, ensuring it contains the correct properties and valid configuration values for colors, table, pagination, and expand icon.
- Updated vitest configuration to include test files with .ts and .tsx extensions.
- Added @vitest/coverage-v8 dependency for improved test coverage reporting.

* test: Add unit tests for MultiLevelTable component

- Introduced comprehensive unit tests for the MultiLevelTable component, covering rendering, row expansion, sorting, pagination, custom theming, and filtering functionalities.
- Validated the correct application of custom styles and rendering for status cells and pagination controls.
- Ensured that the component behaves as expected with mock data and various configurations.

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Co-authored-by: anitta-keyvalue <anitta@keyvalue.systems>

Author: abhay-keyvalue

.eslintrc.json

@@ -0,0 +1,35 @@
+{
+  "root": true,
+  "env": {
+    "browser": true,
+    "es2020": true
+  },
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:react-hooks/recommended",
+    "plugin:react/recommended",
+    "plugin:react/jsx-runtime",
+    "prettier"
+  ],
+  "ignorePatterns": ["dist", ".eslintrc.json"],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "project": ["./tsconfig.json", "./tsconfig.test.json"],
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "plugins": ["react-refresh", "react", "@typescript-eslint"],
+  "rules": {
+    "react-refresh/only-export-components": [
+      "warn",
+      { "allowConstantExport": true }
+    ],
+    "react/react-in-jsx-scope": "off"
+  },
+  "settings": {
+    "react": {
+      "version": "detect"
+    }
+  }
+}