Support for subdirectories

[yacchin1205]

To integrate ep_weave into OperationHub, modify it to work under the subdirectory /services/xyz.

• ep_weave.basePath is added to settings. If you specify something like /services/ep_weave here, it will adjust the endpoint URL to be under that directory.
• Path names in the code have been modified to allow for subdirectories.
• Base image can be changed by buildarg. As of 2024-09-03, etherpad/etherpad:2 does not support subdirectories, so you must specify etherpad/etherpad:develop.
• The error was caused by jquery not being found, so we added it in the form of loading it from CDN.(Temporary solution)