R6 - Editable XLIFF files with partial substitution

Added first ability to edit translated segments. Additionally, it is possible now to substitute segments with non-100% match.

What's Changed

• Add pagination for records in TMX and XLIFF viewers by @ArchiDevil in #48
• Editable XLIFF segments by @ArchiDevil in #53
• Add ruff linter for backend by @GoddessEyes in #54
• Add preliminary glossary support by @GoddessEyes in #55
• Add endpoints for partials subsitutions in XLIFF by @ArchiDevil in #56
• Add substitutions panel to XLIFF editor by @ArchiDevil in #58
• Add partial substitutions for automated XLIFF processing by @ArchiDevil in #59
• Add one more font UI components by @ArchiDevil in #60

New Contributors

• @GoddessEyes made their first contribution in #54

Full Changelog: v0.5...v0.6