Fix Vietnamese Text Display

[haikbvn]

Description

This pull request addresses an issue with the display of Vietnamese text by modifying the font-family property. Previously, Vietnamese text might not have been rendered correctly due to the absence of a fallback font. This change adds a fallback font option to ensure proper display across various environments.

Code Changes

- font-family: 'Inter var' !important;
+ font-family: 'Inter var', sans-serif !important;

Testing

To ensure that the display of Vietnamese text is fixed, the following steps were taken:

• [x] Applied the code change locally.
• [x] Loaded the application with Vietnamese text content.
• [x] Verified that Vietnamese text is displayed correctly without any rendering issues.
• [x] Ensured that the change did not adversely affect the display of text in other languages.

This change has been tested and confirmed to resolve the issue with Vietnamese text display.