F query quotation

Summary

Handles entity names with empty space used in queries in ext_autocompletion and edit_mode.

Fixes https://gitlab.com/caosdb/caosdb-webui/-/issues/165

Focus

• The two changes in ext_autocompletion and edit_mode are independent.
• See the new test case to understand what this is about: (Auto-completion for FIND RECORD Ice should yield Ice Core as a result, but insert it with quotation into the search bar.
• The change in edit_mode handles a name like "Ice Core" when the edit mode generates a query for listing all possible entities in reference properties (which has to be quoted, otherwise, syntax error).

Test Environment

Manual testing would be good.

1. Insert a RecordType with an empty space in the name and maybe another one without.
2. For edit mode: create another entity and drag'n'drop the entity with an empty space into the new entities properties. This should trigger edit_mode.retrieve_datatype_list with a quoted name in the query.
3. For auto-completion: Type FIND and then the first three characters into the search bar. The resulting query should have a quoted name.

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