refactor: update styled-components to v6

[beawar]

Add $prefix on custom props of styled components.
Remove or replace invalid styles.
Remove types.d.ts declaration file, which was messing types.
Create declaration file for assets.
Update tsconfig to allow js.
Install missing types libraries and augment react-big-calendar which has some wrong typing.
Migrate some simple file to ts.
Add some FIXME comment where additional knowledge/refactor is required to fix the code.

Refs: CO-1609

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• Requires feat: upgrade styled-components to v6 carbonio-shell-ui#502
• Requires build(deps): update ds and date-fns  carbonio-shell-ui#530

[sonarqube-zextras]

• 42.70% Coverage on New Code (is less than 80.00%)
• 0.00% Security Hotspots Reviewed on New Code (is less than 100.00%)
• 4 New Issues (is greater than 0)

Analysis Details

6 Issues

• 0 Bugs
• 2 Vulnerabilities
• 4 Code Smells

Coverage and Duplications

• 42.70% Coverage (52.50% Estimated after merge)
• 0.21% Duplicated Code (4.10% Estimated after merge)

Project ID: carbonio-calendars-ui

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