fix: populated params if api has params

[ShashwatXD]

PR Description

This pull request fixes an issue where query parameters present in a cURL URL were detected during import but were not added to the request’s Params tab.

Related Issues

Closes #978

Checklist

• I have gone through the contributing guide
• I have updated my branch and synced it with the project main branch before making this PR
• I am using the latest Flutter stable branch (flutter upgrade)
• I have run the tests (flutter test) and all tests are passing

Added / Updated Tests

• Yes
• No, this change completes missing parameter-mapping logic during cURL import and does not modify existing business rules or data models.

OS Tested On

• macOS
• Windows
• Linux

[Aman071106]

@ShashwatXD great work on addressing this issue - the fix looks ok.

One small suggestion for the PR description:
The checklist items aren’t rendering properly because of extra spaces inside the brackets.
For example, [ x] or [x ] doesn’t register as a valid Markdown checkbox.

Using [x] (with no leading/trailing spaces) inside the Markdown field will format the checklist correctly and improve the readability of the PR, which helps maintainers during review.

Other than that, thanks for contributing - appreciate your work on this!

[ShashwatXD]

@Aman071106 thanks for the suggestion, i have updated the description