Quite a lot of minor patches.

What's Changed

• Update control_const.py by @ismre in #513
• Fix API URL change by @Bobby5291 in #521
• Add portal domain to options flow by @patduckless in #522
• Added config flow for updating Username/Email, API Key ID, API Secret, and Plant ID. by @patduckless in #523
• Update const.py by @scracknell in #527
• Update soliscloud_const.py by @scracknell in #528
• Update soliscloud_api.py by @scracknell in #529
• Allow integration setup when no inverters are found, with inverter discovery retry if 0 inverters are found. by @Cerbrus in #531
• Add smart load power and daily energy metrics to Solis integration by @salmansiddiqui17 in #536
• Add request timeout configuration to Solis integration by @patduckless in #541
• 535 indexerror list index out of range in control constpy split crashes numbertime platform setup by @hultenvp in #546

New Contributors

• @ismre made their first contribution in #513
• @Bobby5291 made their first contribution in #521
• @scracknell made their first contribution in #527
• @Cerbrus made their first contribution in #531
• @salmansiddiqui17 made their first contribution in #536

Full Changelog: v4.0.1...v4.0.2