perf(glossary): Improve `KanaList` render performance

[apomalyn]

📖 Description

Improve the render time of the KanaList by switching GridView.count to builder.

🧪 How to test the change?

1. Load the glossary tab
2. See changes

☑️ Checklist before requesting a review

• [x] I have performed a self-review of my code.
• [x] I have added/updated tests.
• [x] Make sure to add either one of the following labels: version: Major,version: Minor or version: Patch.

[github-actions[bot]]

Bump version from 0.25.1+1 to 0.25.2+1

[github-actions[bot]]

Coverage after merging pref/glossary into main will be

48.42%

Coverage Report for Changed Files

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
lib/src/glossary/widgets
kana_list.dart	91.18%	100%	100%	91.18%	109, 130, 133, 156, 33–34

[github-actions[bot]]

Bump version from 0.25.5+1 to 0.25.6+1

[github-actions[bot]]

Coverage after merging pref/glossary into main will be

48.42%

Coverage Report for Changed Files

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
lib/src/glossary/widgets
kana_list.dart	91.18%	100%	100%	91.18%	109, 130, 133, 156, 33–34

[github-actions[bot]]

Bump version from 0.26.0+1 to 0.26.1+1

[github-actions[bot]]

Coverage after merging pref/glossary into main will be

48.42%

Coverage Report for Changed Files

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
lib/src/glossary/widgets
kana_list.dart	91.18%	100%	100%	91.18%	109, 130, 133, 156, 33–34

[github-actions[bot]]

Bump version from 0.26.1+1 to 0.26.2+1

[github-actions[bot]]

Coverage after merging pref/glossary into main will be

48.42%

Coverage Report for Changed Files

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
lib/src/glossary/widgets
kana_list.dart	91.18%	100%	100%	91.18%	109, 130, 133, 156, 33–34