LightEdit mode logic fix
LightEdit mode logic fix

- Always false for GUI/headless commands.
- Skip options starting with "-"/"--".
- Handle -l/--line, -c/--column options as requiring a file (= LightEdit mode).
- Assume non-existent path points to a file.

GitOrigin-RevId: f901b664a408d2d3186ba7b2218566fb013ec281
allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community