Feat add suggestion alignment

*need to align RTL texts from right to left currently the suggestion is sticked to the left side

Describe the solution you'd like Add Alignment argument to the searchfield widget

Describe alternatives you've considered

Additional context Ill add a PR for the solution*

#90

Pre-launch Checklist

[ ] I read the Contributor Guide and followed the process outlined there for submitting PRs.
[ ] I listed at least one issue that this PR fixes in the description above.
[ ] I updated/added relevant documentation (doc comments with ///).
[ ] I added new tests to check the change I am making, or this PR is [test-exempt].
[ ] All existing and new tests are passing using flutter test

If you need help, consider pinging the maintainer @maheshmnj