Change log parsing regex for better handling of multi-line messages

Dependencies

• [2] L3VOQYAF Add changelog view to the source control panel
• [3] WCQM6IOK Add parsing of Author strings
• [4] HF3NERPZ Add cache for changes and add change dependencies to log
• [5] 64J6B76F Add command to rename channels
• [*] ZGMIJNFV Create pijul.ts for executing commands using the Pijul CLI

Change contents

• replacement in src/pijul.ts at line 403
  [2.1823]→[2.1823:1915](∅→∅)
  − const parsePattern = /Change\s([0-9A-Z]{53})\nAuthor:\s(.*)\nDate:\s(.*)\n\n.\s(.*)/gm;
  [2.1823]

  [2.1915]
  + const parsePattern = /Change\s([0-9A-Z]{53})\nAuthor:\s(.*)\nDate:\s(.*)\n\n\s+(.*)/gm;