Added a DEV environment variable to use local .db file

[harshkhandeparkar]

Changes

• Added an environment DEV (boolean). Setting this variable to true will use a local devDB.db sqlite3 database file instead of the online Postgres db.
• Refactored InitialMigration() to use the GetDB() method (removed duplicated code)
• Added a defer db.Close() to IntialMigration()

[rajivharlalka]

Rest Looks fine, but iirc there were issues wrt to automigrations of table schema. Not something to look into now, but ig we can refactor the schema this year? and handle dashboards better way, showing graph and stuff. people like it nowadays? Can you create an issue with this respect.

[harshkhandeparkar]

Rest Looks fine, but iirc there were issues wrt to automigrations of table schema. Not something to look into now, but ig we can refactor the schema this year? and handle dashboards better way, showing graph and stuff. people like it nowadays? Can you create an issue with this respect.

Both things on my TODO, will open issues soon.

[rajivharlalka]

LGTM, Merging