feat: add resetViewOnly prop to retain data but reset map position

[jessicamcinchak]

By default, the "Reset" control is responsible for two things:

• Resetting the map viewport based on displayed data or center coordinate & zoom configs
• Clearing all data from the drawing source if drawMode is enabled

This adds a new prop resetViewOnly that allows us to still show a "Reset" control when in drawMode, but retain data when clicked and only reset the map viewport. This is useful if you want a "Remove" button to live in another part of your UI - like we're doing in PlanX here theopensystemslab/planx-new#3625

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