Modernization and Migration of InputWithExamples to NumericInput folder (#2121)

## Summary:
This PR is part of the Numeric Input Project work. It is being landed onto the `feature/numeric-dx-refactor` branch. 

This PR contains the following changes:
1. Moves the InputWithExamples component to the NumericInput folder
2. Modernizes InputWithExamples to be a functional component 
3. Addition of some comments 

Video Example of Snapshot Testing:

https://github.com/user-attachments/assets/ca917778-50b0-46d2-89d8-dad95d1dadf2



Issue: LEMS-2785

## Test plan:
- Ensure all tests pass 
- Manual testing with PR Snapshot in upstream consumer 
- Landing onto feature branch that will see full QA regression pass before deployment

Author: SonicScrewdriver

Reviewers: SonicScrewdriver, mark-fitzgerald

Required Reviewers:

Approved By: mark-fitzgerald

Checks: ✅ Publish npm snapshot (ubuntu-latest, 20.x), ✅ Check for .changeset entries for all changed files (ubuntu-latest, 20.x), ✅ Lint, Typecheck, Format, and Test (ubuntu-latest, 20.x), ✅ Check builds for changes in size (ubuntu-latest, 20.x), ✅ Publish Storybook to Chromatic (ubuntu-latest, 20.x), ✅ Cypress (ubuntu-latest, 20.x)

Pull Request URL: #2121

Author: SonicScrewdriver

.changeset/rich-flowers-prove.md

@@ -0,0 +1,6 @@
+---
+"@khanacademy/math-input": minor
+"@khanacademy/perseus": minor
+---
+
+Modernization and Migration of InputWithExamples to NumericInput folder

packages/perseus/src/components/input-with-examples.tsx

@@ -11,10 +11,10 @@ import * as React from "react";
 import _ from "underscore";
 
 import {PerseusI18nContext} from "../../components/i18n-context";
-import InputWithExamples from "../../components/input-with-examples";
 import SimpleKeypadInput from "../../components/simple-keypad-input";
 import {ApiOptions} from "../../perseus-api";
 import {getPromptJSON as _getPromptJSON} from "../../widget-ai-utils/input-number/input-number-ai-utils";
+import InputWithExamples from "../numeric-input/input-with-examples";
 
 import type {PerseusStrings} from "../../strings";
 import type {Path, Widget, WidgetExports, WidgetProps} from "../../types";

packages/perseus/src/widgets/input-number/input-number.tsx

@@ -1,6 +1,6 @@
 import {action} from "@storybook/addon-actions";
 
-import InputWithExamples from "../input-with-examples";
+import InputWithExamples from "./input-with-examples";
 
 import type {Meta, StoryObj} from "@storybook/react";