Warp supports subshells with modern IDE, blocks, and autocompletions

Subshell support has been added to Warp, allowing users to "Warpify" their bash, zsh, or fish subshells and access core features even when working in a nested session. This includes modern IDE-style output, blocks, autocompletions, workflows, AI Command Search, and more. Warp now recognizes certain commands as "subshell-compatible" and prompts users to Warpify them. Users can also add custom bash/zsh/fish commands for Warpification or blocklist specific commands from being Warpified. This feature is highly requested and beneficial for developers working with subshells in their workflows.