<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
Adds support for Vietnamese in QuickAccent
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
- [x] **Closes:** #36491
- [x] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [x] **Localization:** All end-user-facing strings can be localized
- [x] **Dev docs:** no need
- [x] **New binaries:** no need
- [x] **Documentation updated:** no need
<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
Vietnamese character set based of on
[Wikipedia](https://en.wikipedia.org/wiki/Vietnamese_alphabet)
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
Manually tested
* init
* Use AotCompatibility instead
* Replace typeof(Lanaguge) with GetValues<Language>
* Create new folder to place source generation context file.
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Co-authored-by: Yu Leng (from Dev Box) <yuleng@microsoft.com>
* Add ḱ to PowerAccent for Proto-Indo-European
* Fix Spelling Check
* Add more letters to PIE
* Order PIE after PI
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Co-authored-by: Hao Liu (from Dev Box) <haoliu3@microsoft.com>
Co-authored-by: Jaime Bernardo <jaime@janeasystems.com>
* PowerAccent with multi-language selection
- Updated Language enum, method signatures, and settings to support multiple language selections.
- Remove ALL language and added special characters language instead.
- Modified UI to use ListView with checkboxes for language selection, including a "Select All" option.
- Adjusted ViewModel and code-behind to handle multi-selection logic.
- Updated Resources.resw and PowerAccentViewModel.cs to reflect these changes.
* Changes Language selection UI
- Groups languages into two groups
- Sort them by localized language name
- Remove unneeded looping when no languages selected
* **Languages.cs**
- Add `GetDefaultLetterKeySRCyrillic` method for Serbian Cyrillic letters.
- Add `SR_CYRL` entry to `Language` enum.
- Update `GetDefaultLetterKey` method to include `Language.SR_CYRL`.
* **PowerAccentPage.xaml**
- Add `ComboBoxItem` for Serbian Cyrillic in `SelectedLanguage` `ComboBox`.
* **Resources.resw**
- Add entry for Serbian Cyrillic.
* **PowerAccentViewModel.cs**
- Add `SR_CYRL` to the list of supported languages.
* [Quick Accent] Add support for Middle Eastern Romanization
* Update ToUpper() (PowerAccent.cs)
* Add right single quotation mark
* rework ToUpper()
* rework ToUpper()
* Update ToUpper()
* Internal strings more about Romanization
## Summary of the Pull Request
Adds Bulgarian to Quick Accent
## Detailed Description of the Pull Request / Additional comments
Adds Cyrillic letter short I (й)
* Add support for Esperanto for PowerAccent
* Add missing UI part
* Add `EPO` to the exception list
* Remove multiple blank lines
* Add Strings
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Co-authored-by: ccmywish <ccmywish@qq.com>
* PowerAccent: make All collect from Lang functions rather than return from manually updated list
* I forgot the semicolon
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Co-authored-by: dannysummerlinjstartorg <danny.summerlin@jstart.org>
