Move go-to-line UI into the editor action bar for a unified layout
Keep toolbar height stable with compact inline line input and Go action
Align file action icons to a single always-enabled visual style
Add a Go to Line dialog to the file editor that accepts a line number
and scrolls the CodeMirror editor to that position. Triggered via:
- Keyboard shortcut: Alt+G (macOS/Windows/Linux)
- Toolbar button next to the existing Find in file button