Rename `ls` command to `list`

Dependencies

• [2] W5HHTRPK Rename the `mv` command to `move`
• [3] EEOOHGQQ More atomic "file moves+transaction"
• [4] KWAMD2KR A few fixes in the documentation comments
• [5] JL4WKA5P Implement the Sanakirja concurrency model in a cross-process way
• [6] AEPEFS7O Write help for each argument
• [7] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [8] JWTT77WJ Add help on subcommands
• [9] 4H2XTVJ2 Fix some mistakes in the docs
• [10] 62XVBWPY remove redundant Clap attributes
• [11] TZVUNELW Documentation comments

Change contents

• replacement in pijul/src/main.rs at line 72
  [3.85231]→[3.85231:85243](∅→∅)
  − Ls(Ls),
  [3.534]

  [3.95]
  + List(List),
• replacement in pijul/src/main.rs at line 201
  [2.77]→[3.5038:5084](∅→∅),[3.5038]→[3.5038:5084](∅→∅)
  − SubCommand::Ls(ls) => ls.run().await,
  [2.77]

  [3.5084]
  + SubCommand::List(list) => list.run().await,
• replacement in pijul/src/commands/file_operations.rs at line 88
  [3.170766]→[3.170766:170782](∅→∅)
  − pub struct Ls {
  [3.170766]

  [3.2262]
  + pub struct List {
• replacement in pijul/src/commands/file_operations.rs at line 94
  [3.170850]→[3.170850:170860](∅→∅)
  − impl Ls {
  [3.170850]

  [3.14910]
  + impl List {