## Summary
* **What is the goal of this PR?**
Separate the font manager's combined `Download / Update All` action into
separate `Download All` and `Update All` rows
* **What changes are included?**
- Updated multiple i18n translation files to add `STR_UPDATE_ALL` and
adjust `STR_DOWNLOAD_ALL` text.
- Added separate handlers: `downloadAll()` for fonts that have been
installed and `updateAll()` for fonts with updates.
- `Download All` and `Update All` are only shown when applicable.
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### AI Usage
While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? _**PARTIALLY**_
WuTofu
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