fix: recently added items sort order in the homepage

.ie. stop relying on folder last mod date, and use the latest file from the folder

+ bump watchdog to v4
+ add WIP docs (stashed in .github/code.docs for now)

pyproject.toml

@@ -9,7 +9,6 @@ python = ">=3.10,<3.12"
 Flask = "^2.0.2"
 Flask-Cors = "^3.0.10"
 requests = "^2.27.1"
-watchdog = "^3.0.0"
 Pillow = "^9.0.1"
 "colorgram.py" = "^1.2.0"
 tqdm = "^4.65.0"
@@ -25,6 +24,7 @@ setproctitle = "^1.3.2"
 flask-restful = "^0.3.10"
 locust = "^2.20.1"
 waitress = "^2.1.2"
+watchdog = "^4.0.0"
 
 [tool.poetry.dev-dependencies]
 pylint = "^2.15.5"