Fix the search button loading state to be consistent with other table components.
The search button now properly shows loading animation when the table data is
being fetched.
Changes:
- Update search button loading prop from `loading={searching}` to
`loading={loading || searching}` in TokensTable.js
- This ensures loading state is shown both when searching with keywords
(searching=true) and when loading default data (loading=true)
- Aligns with the behavior of other table components like ChannelsTable,
UsersTable, and RedemptionsTable
Before: Search button only showed loading when searching with keywords
After: Search button shows loading for all table data fetch operations
a0ae6644ee