Issue 1:
Apache Airflow version

2.3.4

What happened

When running airflow db upgrade , we encounter the following error:

`[2022-09-05 07:04:10,182] {db.py:939} WARNING - Found 273 duplicates in table task_fail. Will attempt to move them.

[2022-09-05 07:08:23,703] {db.py:1466} INFO - Creating tables

INFO [alembic.runtime.migration] Context impl MySQLImpl.

INFO [alembic.runtime.migration] Will assume non-transactional DDL.

INFO [alembic.runtime.migration] Running upgrade 587bdf053233 -> 5e3ec427fdd3, Increase length of email and username in ab_user and ab_register_user table to 256 characters

INFO [alembic.runtime.migration] Running upgrade 5e3ec427fdd3 -> 786e3737b18f, Add timetable_description column to DagModel for UI.

INFO [alembic.runtime.migration] Running upgrade 786e3737b18f -> f9da662e7089, Add LogTemplate table to track changes to config values log_filename_template

INFO [alembic.runtime.migration] Running upgrade f9da662e7089 -> e655c0453f75, Add map_index column to TaskInstance to identify task-mapping,

and a task_map table to track mapping values from XCom.

INFO [alembic.runtime.migration] Running upgrade e655c0453f75 -> a3bcd0914482, add data_compressed to serialized_dag

INFO [alembic.runtime.migration] Running upgrade a3bcd0914482 -> c306b5b5ae4a, Switch XCom table to use run_id and add map_index.

INFO [alembic.runtime.migration] Running upgrade c306b5b5ae4a -> c97c2ab6aa23, add callback request table

INFO [alembic.runtime.migration] Running upgrade c97c2ab6aa23 -> 4eaab2fe6582, Migrate RTIF to use run_id and map_index

Traceback (most recent call last):

File "/opt/python3.9/lib/python3.9/site-packages/sqlalchemy/engine/base.py", line 1802, in _execute_context

self.dialect.do_execute(

File "/opt/python3.9/lib/python3.9/site-packages/sqlalchemy/engine/default.py", line 719, in do_execute

cursor.execute(statement, parameters)

File "/opt/python3.9/lib/python3.9/site-packages/MySQLdb/cursors.py", line 206, in execute

res = self._query(query)

File "/opt/python3.9/lib/python3.9/site-packages/MySQLdb/cursors.py", line 319, in _query

db.query(q)

File "/opt/python3.9/lib/python3.9/site-packages/MySQLdb/connections.py", line 254, in query

_mysql.connection.query(self, query)

MySQLdb._exceptions.IntegrityError: (1215, 'Unknown error 1215')`

We are currently attempting to migrate from 2.2.4 to 2.3.4

What you think should happen instead

No response

How to reproduce

No response

Operating System

CentOS Linux 7

Versions of Apache Airflow Providers

No response

Deployment

Composer

Deployment details

No response

Anything else

No response

Are you willing to submit PR?

Yes I am willing to submit a PR!

Code of Conduct

I agree to follow this project's Code of Conduct

Issue 2:
Description

Airflow is a great software. I use it intensively in my current work. But I wonder why the webserver is running without other language support? Isn't it nice to switch between different language for different country?

Use case/motivation

I want to add Chinese to airflow. I am professional in Chinese and Japanese. I would like to add a switch to change webserver to Chinese and Japanese.

Related issues

No response

Are you willing to submit a PR?

Yes I am willing to submit a PR!

Code of Conduct

I agree to follow this project's Code of Conduct