hledger: add Spanish translation

[marcos-aparicio]

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page(s) have at most 8 examples.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The page(s) follow the style guide.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known):

[tldr-bot]

Hello! I've noticed something unusual when checking this PR:

• The page pages.es/common/hledger.md is outdated, based on the command contents itself, compared to the English page.

Is this intended? If so, just ignore this comment. Otherwise, please double-check the commits.

[marcos-aparicio]

For any reviewers seeing this, the tldr-bot error is indeed intended, I've checked and it happens because the command string itself is different in the Spanish version in comparison to the English version. That is because the Spanish version includes some translations within the command itself as those sections do not necessarily need to be in English despite not having the {{}} brackets. The following image might be more descriptive.

[sebastiaanspeck]

For any reviewers seeing this, the tldr-bot error is indeed intended, I've checked and it happens because the command string itself is different in the Spanish version in comparison to the English version. That is because the Spanish version includes some translations within the command itself as those sections do not necessarily need to be in English despite not having the {{}} brackets. The following image might be more descriptive.

Please revert the non-placeholder translations back to English.

[sebastiaanspeck]

See my comment above