Fix typos in landing page copy

[Copilot]

Description

Corrected two typos in the landing page (landing-page/src/pages/index.astro):

• Line 29: "osn" → "on" ("applied osn production" → "applied on production")
• Line 47: "sanboxes" → "sandboxes" ("run on sanboxes" → "run on sandboxes")

Merged latest changes from main branch to keep the PR up-to-date while preserving the typo fixes.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Code style update (formatting, renaming)
• Code refactor (no functional changes)
• Configuration change
• Test update

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works

Release Notes

Fixed typos in landing page copy.

Labels

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[aspectrr]

@copilot can you pull in the latest changes

[Copilot]

@copilot can you pull in the latest changes

Merged latest changes from main in d31db93. All conflicts resolved while preserving the typo fixes.