JetBrains M0.1 issues

[phillco]

• Sidecar: close other tabs when changing files

• standardize file paths

• Write the memory buffer content to a temporary file

  • load this file in VS Code rather than the actual file
  • reload on any JetBrains change

• Create JetBrains serial/version numbers for files, pass them back into the hat file

  • don't render stale hats

• Create a system for indicating which JetBrains editor should be active

• figure out how to pip commands

• Change the viewport logic so that we center around the cursor, rather than just scrolling to the first visible line in JetBrains

• (Opt) rebase existing hat positions when editing the document

• cleanup JetBrains code so that it can be published