Shinylive 0.6.0

General:

• Post message to parent when ready (#166)
• Add sql language features (#159)
• Shiny header bar link now opens in a new window

Python:

• Update shinyswatch to v0.7.0 (#157)
• Update to Pyodide 0.26.2
• Use Pyodide's version of IPython (#161)

R:

• Update webR to v0.4.1 (#169)
• Update R Shiny to v1.9.1 (#168)
• webR: Continue initialisation even if package mounting fails (#167)