refactor: Call /sync to know which data sync needs to be done

[Adaendra]

📖 Description

Update the locator initialization to call first GET /sync to know which static data endpoints needs to be called.

⁉️ Related Issues

closes #219

🧪 How to test the change?

• Open the API logs
• Start the application without local cache
• Check the API logs. The next calls must be done
  • GET /sync
  • GET on each kind of static data (kana, kanji...)
• Close the application
• Open the application
• Check the API logs. Only the GET /sync call must have been done.
• Close the application
• Update the database to have a new version which add or update a kana
• Open the application
• Check the API logs. Only 2 calls must have been done :
  • GET /sync
  • GET /kana

☑️ 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]]

Coverage after merging issue_219 into issue_217 will be

48.76%

Coverage Report for Changed Files

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
lib/src
locator.dart	1.92%	100%	100%	1.92%	101–103, 105, 108, 111–113, 115, 118, 121, 27–28, 31–34, 36–38, 43–44, 47, 49–50, 59–71, 74–75, 78, 81–83, 85, 88, 91–93, 95, 98
lib/src/core/models
sync.dart	40%	100%	100%	40%	21, 31–32
lib/src/core/services
sync_service.dart	0%	100%	100%	0%	17–20, 22, 26–27, 30–31, 34–35, 38–39, 42–44, 48–51, 53

[github-actions[bot]]

Coverage after merging issue_219 into issue_217 will be

48.76%

Coverage Report for Changed Files

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
lib/src
locator.dart	1.92%	100%	100%	1.92%	101–103, 105, 108, 111–113, 115, 118, 121, 27–28, 31–34, 36–38, 43–44, 47, 49–50, 59–71, 74–75, 78, 81–83, 85, 88, 91–93, 95, 98
lib/src/core/models
sync.dart	40%	100%	100%	40%	21, 31–32
lib/src/core/services
sync_service.dart	0%	100%	100%	0%	17–20, 22, 26–27, 30–31, 34–35, 38–39, 42–44, 48–51, 53

[github-actions[bot]]

Bump version from 0.22.0+1 to 0.23.0+1

[github-actions[bot]]

Coverage after merging issue_219 into main will be

48.76%

Coverage Report for Changed Files

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
lib/src
locator.dart	1.92%	100%	100%	1.92%	101–103, 105, 108, 111–113, 115, 118, 121, 27–28, 31–34, 36–38, 43–44, 47, 49–50, 59–71, 74–75, 78, 81–83, 85, 88, 91–93, 95, 98
lib/src/core/models
sync.dart	40%	100%	100%	40%	27, 37–38
lib/src/core/services
sync_service.dart	0%	100%	100%	0%	17–20, 22, 26–27, 30–31, 34–35, 38–39, 42–44, 48–51, 53