Fix file watcher to handle rename events

[jeparlefrancais]

Closes #340

Improved the file watcher to process rename events and also remove empty folders after the process if they weren't present initially.

• add entry to the changelog

[github-actions]

Coverage after merging file-watcher-rename-fix into main will be

85.06%

Coverage Report for Changed Files

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src/cli/utils
file_watcher.rs	0%	100%	0%	0%	102–109, 111–113, 119, 121–124, 126, 128–131, 133, 136–137, 139–144, 146, 149–150, 152–158, 160, 163–165, 169, 172–179, 181, 187–192, 194, 203–204, 206–209, 211, 213, 216–217, 219–221, 223, 226–227, 229–241, 243–247, 249–250, 252, 255, 257, 259–260, 262–273, 275–281, 283–285, 287–288, 290, 292–295, 297–305, 307–309, 312–315, 317, 321–325, 327–332, 334–339, 341–349, 352–354, 356–364, 366–374, 377–378, 381–389, 391–394, 396–399, 401–409, 41, 411–413, 415, 42, 420–429, 431, 438–439, 44, 441, 446–447, 449, 45, 451–452, 454–459, 46, 460–463, 47–55, 57–58, 60, 62–63, 65–66, 71–73, 75–76, 78–80, 82–84, 86–89, 91–92, 94–99
src/frontend
mod.rs	100%	100%	100%	100%
resources.rs	66.98%	100%	66.67%	67.03%	109–117, 119, 122, 124–127, 129–137, 139, 142, 147, 149–151, 154, 156, 161–167, 169, 177–180, 203, 205, 210, 214–215, 217, 230–231, 233, 240–241, 243, 332–334, 337–342, 344–346, 364–366, 368–373, 57–59, 77
worker_tree.rs	48.73%	100%	45.45%	49.06%	112–113, 123, 151, 163, 166, 171, 177, 180, 184, 195–196, 199, 234, 236–237, 239–249, 251–253, 255, 258, 284, 294, 301–305, 308–313, 316–317, 319–328, 330–332, 335–336, 338–343, 345–348, 351–352, 354–358, 360–363, 365, 367–368, 370, 372–375, 377, 379, 381–387, 391–392, 395–398, 401–402, 404, 406–411, 430–431, 433–437, 439–443, 445, 447, 468, 471, 473–479, 481, 483, 50, 52, 54, 61, 63, 65, 76, 78–79, 82