feat(ui): Allow disabling never expire access tokens

[DiogoVala]

Added option to allow disabling "Never" in the "Expire in" dropdown when generating a Personal Access Token. Also added the "1 year" option, as that is a common token expiry duration.

[codecov[bot]]

Bundle Report

Changes will decrease total bundle size by 9.89kB (-0.03%) :arrow_down:. This is within the configured threshold :white_check_mark:

Detailed changes

Bundle name	Size	Change
datahub-react-web-esm	28.71MB	-9.89kB (-0.03%) :arrow_down:

Affected Assets, Files, and Routes:

view changes for bundle: datahub-react-web-esm

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
assets/index-*.js	-9.89kB	19.08MB	-0.05%

Files in assets/index-*.js:

• ./src/app/settings/utils.ts → Total Size: 1.48kB

• ./src/app/settings/CreateTokenModal.tsx → Total Size: 6.22kB

• ./src/appConfigContext.tsx → Total Size: 2.67kB

• ./src/app/settingsV2/utils.ts → Total Size: 1.46kB

• ./src/app/settingsV2/CreateTokenModal.tsx → Total Size: 6.5kB