fix: Standardize Font Style Across All Integration Announcement Pages

[japhethLG]

Description

We need to ensure that the font styles on all individual integration announcement pages align with our latest Zesty.io brand guide. Currently the font in every page is inconsistent with our branding guide.

Fixes #2433 and #2434

Type of change

Please delete options that are not relevant.

• [x] Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.

• [x] Manual Test

Screenshots / Screen recording

Before:

After:

[japhethLG]

screenshot ?

Added screenshots for before and after