feat(i18n): complete and update full Hindi (hi) translation with missing keys

[sakina1303]

This PR completes the Hindi (hi) translation for DrawDB by adding all missing keys, updating outdated strings, and ensuring full consistency with the English source (en) file.

What’s Included:

• Added all missing Hindi translations for newly introduced i18n keys
• Updated existing translations for clarity and natural phrasing
• Ensured placeholders like {{tableName}}, {{fieldName}}, etc. remain unchanged
• Verified consistency with the English base file
• Checked UI rendering to confirm correct loading of new keys

Keys Added / Updated:

• Includes keys such as (but not limited to):
• upload_file
• insert_sql
• export_saved_data
• upload_sql_to_generate_diagrams
• dbml_view, tab_view
• bulk_update, multiselect
• Version history + timeline keys
• Debug/coordinate system keys
• Enum + array + relationship label keys

UI Screenshot:

Checklist:

• Added missing translation keys
• Verified translations in the UI
• Ensured JSON structure follows project conventions
• Performed full completeness check against English file

Fixes #740

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[sakina1303]

Hey @1ilit, I have added the missing translations. Kindly provide your review and approval whenever convenient. Thank you.