Add decoding for params from url

[mastervolkov]

If password on the redis server uses characters that require encoding in the URL ("?", "*"), then the decoding will not happen and the password will always be incorrect. Password encoding is always carried out, therefore, decoding should also always be done.

[ThomasThelen]

Steps I used to run

• virtualenv env
• source env/bin/activate
• pip install -r requirements.txt
• python setup.py develop
• docker run -d --name redis-stack-server -p 6379:6379 redis/redis-stack-server:latest
• redis cli
• (within cli, set the password that includes encoded params) config set requirepass p@ss$12E45**?
• rq-dashboard

See the error below; it looks like there was some work done around this function upstream here, which could have put this branch in a bad state. This branch should most likely needs a rebase to pick it up.

(env) thomas@Thomass-MacBook-Pro rq-dashboard % rq-dashboard
Traceback (most recent call last):
  File "/Users/thomas/rq-dashboard/env/bin/rq-dashboard", line 33, in <module>
    sys.exit(load_entry_point('rq-dashboard', 'console_scripts', 'rq-dashboard')())
  File "/Users/thomas/rq-dashboard/env/bin/rq-dashboard", line 25, in importlib_load_entry_point
    return next(matches).load()
  File "/Users/thomas/.pyenv/versions/3.10.3/lib/python3.10/importlib/metadata/__init__.py", line 171, in load
    module = import_module(match.group('module'))
  File "/Users/thomas/.pyenv/versions/3.10.3/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 992, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/Users/thomas/rq-dashboard/rq_dashboard/__init__.py", line 3, in <module>
    from .web import blueprint
  File "/Users/thomas/rq-dashboard/rq_dashboard/web.py", line 61, in <module>
    @blueprint.before_app_first_request
AttributeError: 'Blueprint' object has no attribute 'before_app_first_request'. Did you mean: 'before_app_request'?