🔨 refactor(nodes.py): extract common field attributes to variables and set them accordingly

This commit extracts common field attributes to variables and sets them accordingly. The basic_fields and advanced_fields variables are used to set the show and advanced attributes of the fields. The API Key field is now displayed as "API Key" and its value is hidden. The location field now has a default value of ":memory:" and its placeholder is also set to ":memory:". The password attribute of the key fields is set to False.

Issue Implement Qdrant #361