Suite: Set the database connection string as absolute path for SQLite #14841
Description
Each startup project creates the SQLite database file in its own folder. For example, the database file generated after running DbMigrator is located in the DbMigrator folder. The web application cannot connect to the SQLite database because it is not located in the expected directory. This PR resolves the problem reported at https://support.abp.io/QA/Questions/5304/Abp-Suite-issue
Resolves #14588
Checklist
- I fully tested it as developer / designer and created unit / integration tests
- I documented it (or no need to document or I will create a separate documentation issue)
- I worked with the design team to get their idea for UI/UX design (or no need to design for this PR)
- I've assigned reviewer, related labels and set a milestone for this PR