naming filelock->lockfile + default lockfile_path

tracim/development.ini.base

 email.reply.use_txt_parsing = true
 # Lockfile path is required for email_reply feature,
 # it's just an empty file use to prevent concurrent access to imap unseen mail
-email.reply.filelock_path = %(here)s/email_fetcher.lock
+email.reply.lockfile_path = %(here)s/email_fetcher.lock
 
 ## Radical (CalDav server) configuration
 # radicale.server.host = 0.0.0.0

tracim/tracim/config/app_cfg.py

             'email.reply.use_txt_parsing',
             True,
         ))
-        self.EMAIL_REPLY_FILELOCK_PATH = tg.config.get(
-            'email.reply.filelock_path',
+        self.EMAIL_REPLY_LOCKFILE_PATH = tg.config.get(
+            'email.reply.lockfile_path',
+            '/tmp/tracim_email_fetcher.lock'
         )
 
         self.TRACKER_JS_PATH = tg.config.get(

tracim/tracim/lib/daemons.py

             token=cfg.EMAIL_REPLY_TOKEN,
             use_html_parsing=cfg.EMAIL_REPLY_USE_HTML_PARSING,
             use_txt_parsing=cfg.EMAIL_REPLY_USE_TXT_PARSING,
-            filelock_path=cfg.EMAIL_REPLY_FILELOCK_PATH,
+            lockfile_path=cfg.EMAIL_REPLY_LOCKFILE_PATH,
         )
         self._fetcher.run()
 

tracim/tracim/lib/email_fetcher.py

         token: str,
         use_html_parsing: bool,
         use_txt_parsing: bool,
-        filelock_path: str,
+        lockfile_path: str,
     ) -> None:
         """
         Fetch mail from a mailbox folder through IMAP and add their content to
         self.token = token
         self.use_html_parsing = use_html_parsing
         self.use_txt_parsing = use_txt_parsing
-        self.lock = filelock.FileLock(filelock_path)
+        self.lock = filelock.FileLock(lockfile_path)
         self._is_active = True
 
     def run(self) -> None: