[CAL-5245] routing: improve auto-fill of "Identifier" with lowercase only and replace space " " with "_"

[PeerRich]

https://github.com/user-attachments/assets/ac61f85b-e0dd-43d8-8258-ad5dcb1b5cf9

_CAL-5245

[PeerRich]

/bounty 20

[algora-pbc[bot]]

💎 $20 bounty • Cal.com, Inc.

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[rohitdhakane6]

/attempt

[algora-pbc[bot]]

💡 @ezhil56x submitted a pull request that claims the bounty. You can visit your bounty board to reward.

[D-01576]

/attempt

[pokharnajay]

/attempt

[hrit2773]

@PeerRich can you exactly mention where are the routing forms under which tab they are as I'm new to this repository

[anikdhabal]

Will tackle this here:- https://github.com/calcom/cal.com/pull/16646