Fix Panel opening after Serotonin loading

[NataliaDSmirnova]

Description

#514

• Added checking of molecule title provided with metadata
• If there is no title in file metadata we don't try to show it in the panel

Type of changes

• Bug fix (non-breaking change that fixes an issue)

Checklist

• I have read CONTRIBUTING and CODE_OF_CONDUCT guides.
• I have followed the code style of this project.
• I have run yarn run ci: lint and tests pass locally with my changes.
• I have added tests that prove my fix/feature works OR The changes do not require updated tests.
• I have added the necessary documentation OR The changes do not require updated docs.

[coveralls]

coverage: 25.047% (-0.003%) from 25.05%
when pulling 9d45966 on 514-typeerror-cannot-read-properties-of-undefined-reading-join
into d3018e7 on main.