Rename the `mv` command to `move`

Dependencies

• [2] JL4WKA5P Implement the Sanakirja concurrency model in a cross-process way
• [3] KWAMD2KR A few fixes in the documentation comments
• [4] L4JXJHWX pijul/*: reorganize imports and remove extern crate
• [5] 4H2XTVJ2 Fix some mistakes in the docs
• [6] 62XVBWPY remove redundant Clap attributes
• [7] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [8] JWTT77WJ Add help on subcommands
• [9] AEPEFS7O Write help for each argument

Change contents

• replacement in pijul/src/main.rs at line 69
  [3.85194]→[3.85194:85206](∅→∅)
  − Mv(Mv),
  [3.496]

  [3.93]
  + Move(Move),
• replacement in pijul/src/main.rs at line 200
  [2.4992]→[2.4992:5038](∅→∅)
  − SubCommand::Mv(mv) => mv.run().await,
  [2.4992]

  [2.5038]
  + SubCommand::Move(move_cmd) => move_cmd.run().await,
• replacement in pijul/src/commands/file_operations.rs at line 12
  [3.169232]→[3.169232:169248](∅→∅)
  − pub struct Mv {
  [3.169232]

  [3.2111]
  + pub struct Move {
• replacement in pijul/src/commands/file_operations.rs at line 23
  [3.169341]→[3.169341:169351](∅→∅)
  − impl Mv {
  [3.169341]

  [2.14734]
  + impl Move {