Default Page size

[Roaster05]

Description

This PR enhances the handling of the page-size parameter by introducing a hierarchical priority mechanism and integrating it into the command execution flow.

Hierarchy for page-size Resolution

1. Flag: The value provided via the command flag takes the highest priority.
2. ResolvePageSize Utility: If no flag is provided, the utility determines the page-size in the following order:
   • Value from the configuration file.
   • Value from the HARBOR_CLI_DEFAULT_PAGE_SIZE environment variable.
   • Hardcoded default value (x).

Key Changes

1. Command Execution:
   • Updated list commands to prioritize page-size values using the hierarchy mentioned above.
2. Config Updates:
   • Introduced a new parameter for page-size in the configuration.
   • Added initialization for this parameter in the relevant configuration files.