fixed tag controller error

[amanraval76593]

Description

Fixes a bug where the TextfieldTagsController was not disposed properly, leading to resource leakage. This issue occurred when navigating away from screens that used the TextfieldTagsController without properly disposing of it.

Change: Implemented a solution by adding a new function, resetTagController(), which disposes of the previously created TextfieldTagsController instance and creates a new one before navigating to the Create Room page.

Fixes #310

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Tested manually on the physical device.

Before:-

https://github.com/AOSSIE-Org/Resonate/assets/136071018/2b51a861-f7dd-4c5e-b432-2fe120136d18

After:-

https://github.com/AOSSIE-Org/Resonate/assets/136071018/5aefa02d-821c-43d9-b069-ce834a5d3bf6

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules
• [x] I have checked my code and corrected any misspellings

Maintainer Checklist

• [ ] closes #xxxx (Replace xxxx with the GitHub issue number)
• [ ] Tag the PR with the appropriate labels

[amanraval76593]

@chandansgowda please review the changes

[Aarush-Acharya]

Good Work @amanraval76593 🚀

This is good to merge will merge after the previously scheduled PR's are merged

[vrundraval24]

Hey, @amanraval76593 this branch has merge conflicts due to the merging of previously scheduled branches. Please resolve the merge conflicts. We will wait for your response.