Snyk report fixes + offcanvas sidebar fix (#263)

Refactor:
- Improved consistency and robustness by standardizing file encoding arguments from 'utf-8' to 'utf8' across various file read/write operations.
- Simplified status mapping logic in billing components and services by replacing switch statements with direct mapping objects for clearer and more maintainable code.
- Enhanced type conversion and error handling in billing and internationalization components for improved reliability.
- Updated sorting logic in team member tables for more predictable member ordering.
- Improved error logging with sanitized output to prevent formatting issues.
- Adjusted environment variable whitelisting to use a more flexible matching pattern.
- Fix variables for sidebar style handling

Style:
- Refined spacing and layout in account selector and sidebar header components for better visual consistency.

packages/billing/gateway/src/components/line-item-details.tsx

@@ -258,7 +258,7 @@ function Tiers({
                 i18nKey={'billing:andAbove'}
                 values={{
                   unit,
-                  previousTier: (previousTierFrom as number) - 1,
+                  previousTier: (Number(previousTierFrom) as number) - 1,
                 }}
               />
             </span>