fix: GitHub actions workflow fixed, README updated for MySQL connector app (#13)

* fix(ci): address GitHub Actions failure by cleaning up MySQL configs and renaming .env

* refactor: updated the ui for app

* docs: update README, add mysql logo

* refactor(ci): migrate GitHub actions workflow from PostgreSQL to MySQL

* fix: resolve pre-commit linting and formatting issues

* fix(ci): action failure fixed

* chore: more cleanups

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Co-authored-by: Tanish Charthankar <tanish.charthankar@atlan.com>
Co-authored-by: inishchith <inishchith@gmail.com>

Author: 3 people

.env .env.example.env renamed to .env.example

@@ -14,7 +14,7 @@ ATLAN_WORKFLOW_UI_PORT=8233
 ATLAN_WORKFLOW_METRICS_PORT=8234
 ATLAN_TENANT_ID=default
 ATLAN_WORKFLOW_NAMESPACE=default
-ATLAN_APPLICATION_NAME=postgres
+ATLAN_APPLICATION_NAME=mysql
 ATLAN_SQL_SERVER_MIN_VERSION=8.0
 ENABLE_OTLP_LOGS=false