[Workspace Rooms Page][Under Beta] Add Create Button Interaction

[grgia]

• Use workspaceRoomsPage Beta
• Reference parent issue for logic specifics

[jakubstec]

Hi! I'm from Software Mansion, and I'll be helping out @sumo-slonik with this issue:)

[jakubstec]

@Expensify/design Hi, just to clarify, don't we want to include Who can post setting here? 😄

[shawnborton]

Ah yes, let's plan to keep that - oversight on my part!

[jakubstec]

ready for review! #90953