Blog textarea minimum word limit added

[anushkasark08]

• Closes [BUG]: Blog description accepting very short text #473

Rationale for this change

Currently, the blog text area allows users to submit content with very few characters, even just a single letter. This results in incomplete or meaningless blog posts. Adding a **minimum word/character limit** improves content quality and ensures blogs have meaningful descriptions.

What changes are included in this PR?

- Added a `minlength="100"` attribute to the blog content `<textarea>`.

• Removed the extra unused description <textarea> to avoid duplicate input fields.
• Now, the blog cannot be submitted unless the description has at least 100 characters.

Are these changes tested?

- ✅ Yes, tested locally in the browser:

• Submitting with less than 100 characters shows a validation error.
• Submitting with 100+ characters works correctly.

Are there any user-facing changes?

- Yes, users will now see a validation warning if they try to submit a blog with less than 100 characters in the description box.

Screenshots

### Before

After

I have resolved this issue and raised the PR ... Kindly check and merge it accordingly. @gyanshankar1708 @ayushkashyap402 @abdullahxyz85

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