v5.22.0

Added

• Allow hovering over symbol-like commands (e. g. \pi) to show a unicode preview
  or a preview image if the client supports it (#1261)
• Add texlab.symbols.customEnvironments setting for specifying additional environments that will be included in the document symbols
  (#1292)
• Add texlab.experimental.labelReferenceRangeCommands setting (#1210)
• Add tex-fmt as a formatter for latex and bibtex (#1320)

Fixed

• Fix parsing links with URL encoding (#1279)
• Improve error message when texlab.build.executable does not exist (#1303)