[feat] support for all sqlite file extensions

[Shivansh-yadav13]

Issue
Sqlite database support the following file extensions
.sqlite, .sqlite3, .db, .db3, .s3db, .sl3
but sqlite-ui can only open files with .db extension.

Solution
Make the db uri flexible and allow the users to pass in file name along with the extension

SQLite-UI/main.go

Line 19 in ea5984d

db.ConnectDB(fmt.Sprintf("./sqlite_database/%s.db", dbName))

[wliao008]

@Shivansh-yadav13 i'd propose to make this simpler, by passing in the complete path to the db file instead, so basically the db file can be named whatever and located in any directory and it should work.