* do it all
* feat(plugins): move loadingStrategy to ds pluginMeta and add to plugin settings endpoint
* support child plugins and update tests
* use relative path for nested plugins
* feat(plugins): support nested plugins in the plugin loader cache by extracting pluginId from path
* feat(grafana-data): add plugin loading strategy to plugin meta and export
* feat(plugins): pass down loadingStrategy to fe plugin loader
* refactor(plugins): make PluginLoadingStrategy an enum
* feat(plugins): add the loading strategy to the fe plugin loader cache
* feat(plugins): load fe plugin js assets as script tags based on be loadingStrategy
* add more tests
* feat(plugins): add loading strategy to plugin preloader
* feat(plugins): make loadingStrategy a maybe and provide fetch fallback
* test(alerting): update config.apps mocks to include loadingStrategy
* fix format
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Co-authored-by: Jack Westbrook <jack.westbrook@gmail.com>
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