fix: Trailing slash not setting app name properly

Re-do of frappe#1021, somewhat

bench/app.py

@@ -58,7 +58,7 @@ def __init__(self, name: str, branch: str = None, to_clone: bool = True):
 		class Healthcare(AppConfig):
 			dependencies = [{"frappe/erpnext": "~13.17.0"}]
 		"""
-		self.name = name
+		self.name = name.rstrip('/')
 		self.remote_server = "github.com"
 		self.to_clone = to_clone
 		self.on_disk = False