Fix MetaMask connection on Firefox

[hernandoagf]

What does this PR do?

Fix an issue that prevents MetaMask from connecting on Firefox

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated (UTC)
governance-portal-v2	✅ Ready (Inspect)	Visit Preview	Jan 10, 2024 8:29pm

[what-the-diff]

PR Summary

• Enhanced Security in Script Source
  The update has included additional security parameters ('unsafe-eval' 'unsafe-inline') to the script source directive in a segment of our middleware code called cspHeader. This helps in improving protection against any harmful scripts.

• Account Selection Improvement
  A new function called checkInjectedProvider has been incorporated into AccountSelect.tsx. By checking the availability of selected account providers, it ensures seamless user experience.

• Provider Checking Functionality
  We've now created a new function named checkInjectedProvider, which helps validate the presence of certain necessary providers. It makes our system more reliable and less prone to errors.

• New Function in Connection Process
  The same checkInjectedProvider function is applied in the connection process script, useEagerlyConnect.ts, to bolster the robustness of the connection mechanism.

• Library Dependencies Addition
  The updated package.json file now includes dependencies for @metamask/post-message-stream and @metamask/providers. These additions provide us with enhanced functionalities and help us integrate more effectively with Metamask services.

[socket-security]

New dependencies detected. Learn more about Socket for GitHub ↗︎

Packages	Version	New capabilities	Transitives	Size	Publisher
@metamask/post-message-stream	7.0.0	None	+13	4.57 MB	gudahtt
@metamask/providers	14.0.2	filesystem	+21	5.4 MB	metamaskbot