Bump flask-babel from 1.0.0 to 2.0.0

Bumps [flask-babel](https://github.com/python-babel/flask-babel) from 1.0.0 to 2.0.0.
- [Release notes](https://github.com/python-babel/flask-babel/releases)
- [Commits](python-babel/flask-babel@v1.0.0...v2.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

main/requirements.txt

@@ -1,6 +1,6 @@
 authlib==0.14.3
 blinker==1.4
-flask-babel==1.0.0
+flask-babel==2.0.0
 flask-login==0.5.0
 flask-restful==0.3.8
 flask-wtf==0.14.3