Update rule descriptions and markdown print width

This commit improves the clarity of rule descriptions, particularly for
`no-unused-props` and `no-unnecessary-key`. It also reduces the markdown
line width to 120 characters for better readability.

Author: Rel1cx

.mdxlintrc.json

@@ -3,7 +3,7 @@
     "rule": "-",
     "bullet": "-",
     "emphasis": "_",
-    "printWidth": 1024
+    "printWidth": 120
   },
   "plugins": ["remark-gfm", ["remark-frontmatter", ["toml", "yaml"]]]
 }

apps/website/content/docs/release-notes/v2.0.0.mdx

@@ -42,15 +42,15 @@ We have refactored our rules to make them more consistent and intuitive.
 This release adds several new rules to help you write cleaner and more robust React code.
 
 - **`react-x/no-unused-props`**: A TSC-backed rule to flag component props that are defined but never used (credit to [@ulrichstark](https://github.com/ulrichstark) for the implementation).
-- **`react-x/no-unnecessary-key`**: Flags unnecessary `key` props on elements that are not part of a list rendering (credit to [@kachkaev](https://github.com/kachkaev) for the idea).
+- **`react-x/no-unnecessary-key`**: Prevents `key` from being placed on non-top-level elements in a list rendering (credit to [@kachkaev](https://github.com/kachkaev) for the idea).
 - **`react-dom/no-string-style-prop`**: Disallows string values for the `style` prop, which is useful in non-TypeScript environments like MDX (proposed by [@karlhorky](https://github.com/karlhorky)).
 - **`react-dom/prefer-namespace-import`**: Enforces using a namespace import for `react-dom` (the React DOM equivalent of `react-x/prefer-namespace-import`).
 
 ## **Developer Experience (DX) Improvements**
 
 We believe a great tool should not only find problems but also help you fix them.
 
-- **Enhanced Codemods & Auto-Fixes**: More rules now include codemods and auto-fixing capabilities. For instance, `no-forward-ref` can automatically migrate legacy APIs to the new syntax available in React 19.
+- **Enhanced Codemods & Auto-Fixes**: More rules now include codemods and auto-fixing capabilities.
 
   For example, migrating `forwardRef` to the new [`ref` as a prop](https://react.dev/blog/2024/12/05/react-19#ref-as-a-prop) pattern in React 19:
 

apps/website/content/docs/rules/overview.mdx

@@ -80,7 +80,7 @@ full: true
 | [`no-unstable-context-value`](./no-unstable-context-value)                           | 1️⃣ |           | Prevents non-stable values (i.e. object literals) from being used as a value for `Context.Provider` |          |
 | [`no-unstable-default-props`](./no-unstable-default-props)                           | 1️⃣ |           | Prevents using referential-type values as default props in object destructuring                     |          |
 | [`no-unused-class-component-members`](./no-unused-class-component-members)           | 1️⃣ |           | Warns unused class component methods and properties                                                 |          |
-| [`no-unused-props`](./no-unused-props)                                               | 0️⃣ | `🧪` `💭` | Warns about unused component prop declarations                                                      |          |
+| [`no-unused-props`](./no-unused-props)                                               | 0️⃣ | `🧪` `💭` | Warns component props that are defined but never used                                               |          |
 | [`no-unused-state`](./no-unused-state)                                               | 1️⃣ |           | Warns unused class component state                                                                  |          |
 | [`no-use-context`](./no-use-context)                                                 | 1️⃣ |    `🔄`   | Replaces usages of `useContext` with `use`                                                          | >=19.0.0 |
 | [`no-useless-forward-ref`](./no-useless-forward-ref)                                 | 1️⃣ |           | Disallow useless `forwardRef` calls on components that don't use `ref`s                             |          |

packages/plugins/eslint-plugin-react-x/src/rules/no-unused-props.mdx

@@ -24,7 +24,7 @@ react-x/no-unused-props
 
 ## Description
 
-Warns about unused component prop declarations.
+Warns component props that are defined but never used.
 
 Unused props increase maintenance overhead and may mislead consumers of the component into thinking the prop is required or meaningful, even when it has no effect.
 

packages/plugins/eslint-plugin-react-x/src/rules/no-unused-props.ts

@@ -20,7 +20,7 @@ export default createRule<[], MessageID>({
   meta: {
     type: "problem",
     docs: {
-      description: "Warns about unused component prop declarations.",
+      description: "Warns component props that are defined but never used.",
       [Symbol.for("rule_features")]: RULE_FEATURES,
     },
     messages: {