Fix issue with phantom channel

Dependencies

• [2] VT237HUJ Add tree view for channels
• [3] L44OILGK Add reset command to resource state context menu
• [4] L3VOQYAF Add changelog view to the source control panel
• [*] ZGMIJNFV Create pijul.ts for executing commands using the Pijul CLI

Change contents

• replacement in src/pijul.ts at line 421
  [2.1917]→[2.1917:1960](∅→∅)
  − const channels = lines.map((line) => {
  [2.1917]

  [2.1960]
  + const channels = lines.filter(line => line.length > 0).map((line) => {