Variable name fix in python tutorial

[spicydonkey]

This PR replaces write_client to client, because subsequent tutorials refer to the object as such.

The single change in varname is in the "code snippet" of the python tutorial InitializeClient at src/homepageExperience/components/steps/python/InitializeClient.tsx.

This is consistent with all code snippets in the subsequent examples.

[appletreeisyellow]

@spicydonkey Thanks for contributing.

write_client is a local variable name that is used to initialize the write client. This variable is used in the next step of the tutorial (see code below), so replacing it to client would break the set up flow.

ui/src/homepageExperience/components/steps/python/WriteDataSql.tsx

Line 55 in 73f0cde

write_api = write_client.write_api(write_options=SYNCHRONOUS)

I think it's better to keep the variable as write_client to differentiate it from the query_client variable that is used in the later steps of the tutorial (see code below):

ui/src/homepageExperience/components/steps/python/ExecuteQuerySql.tsx

Lines 35 to 43 in 73f0cde

	# Define the query client
	query_client = FlightSQLClient(
	host = "${url.replace(/^https?:\/\//, '')}",
	token = os.environ.get("INFLUXDB_TOKEN"),
	metadata={"bucket-name": "${bucket}"})
	# Execute the query
	info = query_client.execute(query)
	reader = query_client.do_get(info.endpoints[0].ticket)

[JakovGlavac]

I was just about to open this issue.