fix: prevent invalid rich text payload submissions in question editor

[Sanjay-Hub-Dev]

Description

Fixed an issue where the rich text editor allowed empty or invalid formatted payloads to be submitted as questions.

Previously, visually empty editor content such as empty HTML structures (for example <p><br></p>) bypassed validation checks because validation was being performed directly on the raw HTML string instead of actual plain text content.

This could lead to broken or inconsistent question states being created.

Changes Made

• Added plain text extraction before validation
• Prevented empty/invalid rich text submissions
• Updated submit button validation logic
• Improved character count handling for editor content
• Ensured validation checks only meaningful user-entered text

Files Modified

• client/src/pages/AskQuestionPage.jsx

Validation

• Verified empty editor submissions are blocked
• Tested whitespace-only and empty formatted content scenarios
• Confirmed valid formatted content still submits correctly
• Ensured no regression in existing rich text editor functionality

Fixes #8

[vercel]

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