feat(gui): improved saving of filters

[lars-reimann]

Closes #716.

Summary of Changes

• Viewing & changing of filter before saving
• Replace existing filter with same name

Screenshots

[github-actions]

MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ CREDENTIALS	secretlint	yes		no	4.11s
✅ GIT	git_diff	yes		no	0.01s
✅ TSX	eslint	1	0	0	10.9s
✅ TYPESCRIPT	eslint	1	0	0	10.38s
✅ TYPESCRIPT	prettier	2	0	0	1.58s

See errors details in artifact MegaLinter reports on CI Job page
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff

[github-actions]

🎉 This PR is included in version 1.9.0 🎉

The release is available on GitHub release

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