steal some of @tcsenpai 's changes from the PR

+ ditch the LAST FM API KEY thing
+ expose the Musixmatch urls
+ use the kerve last fm api to download similar artist data
+ use google.it instead of the Google public dns to check internet connectivity (to make it work in all environments)
+ return og Dockerfile to fix ARM support

pyproject.toml

@@ -17,7 +17,6 @@ tinytag = "^1.8.1"
 Unidecode = "^1.3.6"
 psutil = "^5.9.4"
 show-in-file-manager = "^1.1.4"
-pendulum = "^2.1.2"
 flask-compress = "^1.13"
 tabulate = "^0.9.0"
 setproctitle = "^1.3.2"
@@ -25,6 +24,7 @@ flask-restful = "^0.3.10"
 locust = "^2.20.1"
 waitress = "^2.1.2"
 watchdog = "^4.0.0"
+pendulum = "^3.0.0"
 
 [tool.poetry.dev-dependencies]
 pylint = "^2.15.5"