Fix: Redundant Save Button

[inesmrad]

Description

In the create invoice form , there exists two save buttons having the same functionality .I deleted one of the redundant save buttons.

Screenshots (if applicable)

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Checklist

• [X] I have tested these changes
• [X] I have updated the relevant documentation
• [X] I have commented my code, particularly in hard-to-understand areas
• [X] I have made corresponding changes to the codebase
• [X] My changes generate no new warnings or errors
• [X] The title of my pull request is clear and descriptive