Refactor select referencing files commands and utilities into a dedicated directory

- merge `apps/editor/src/commands/select-referencing-files-commands/select-referencing-files-command.ts` and `apps/editor/src/commands/select-referencing-files-commands/select-referencing-files-for-selected-command.ts` into a single file `apps/editor/src/commands/select-referencing-files-commands/select-referencing-files-commands.ts`, while removing code duplications
- move 'referencing files' utils to the command folder
- move 'feature' translations to 'command' translations
- user can invoke 'find referencing files' on a folder, the issue is that we show files also placed within this folder - we should only show files living outside of it
- if the current file defines the symbol, it should not be present in the quick pick

└── apps
    └── editor
        └── src
            ├── commands
            │   ├── generate-commit-message-commands
            │   │   ├── actions
            │   │   │   ├── get-prompt-data.ts
            │   │   │   └── run-generate-action.ts
            │   │   ├── generate-commit-message-commands.ts
            │   │   ├── index.ts
            │   │   └── utils
            │   │       ├── build-commit-message-prompt.ts
            │   │       ├── generate-commit-message-with-api.ts
            │   │       ├── get-commit-message-config.ts
            │   │       └── strip-wrapping-quotes.ts
            │   ├── index.ts
            │   └── select-referencing-files-commands
            │       ├── index.ts
            │       ├── select-referencing-files-commands.ts
            │       └── utils
            │           ├── get-referencing-files-for-position.ts
            │           ├── get-referencing-files-for-uris.ts
            │           └── prompt-for-referencing-files.ts
            ├── extension.ts
            ├── features
            │   └── referencing-files
            │       ├── index.ts
            │       └── utils
            │           ├── get-referencing-files-for-position.ts
            │           ├── get-referencing-files-for-uris.ts
            │           └── prompt-for-referencing-files.ts
            └── i18n
                └── translations
                    ├── commands
                    │   └── select-referencing-files.ts
                    └── features
                        ├── index.ts
                        └── referencing-files.ts

Author: robertpiosik

apps/editor/src/commands/index.ts

@@ -20,8 +20,7 @@ export * from './restore-file-selection-command'
 export * from './save-file-selection-command'
 export * from './set-ranges-command'
 export * from './search-files-commands'
-export * from './select-referencing-files-command'
-export * from './select-referencing-files-for-selected-command'
+export * from './select-referencing-files-commands'
 export * from './select-definition-file-command'
 export * from './select-imported-files-command'
 export * from './select-unstaged-files-command'

apps/editor/src/commands/select-referencing-files-command.ts

@@ -0,0 +1 @@
+export * from './select-referencing-files-commands'