Fix TypeError on network errors and update to v1.1.9 with new API domain

[Copilot]

Fixes crash when axios errors lack response objects (network failures, timeouts) and updates API endpoints to new infrastructure.

Bug Fix: TypeError on undefined response

Added null guards for axios error responses that may be undefined:

try {
    const result = await axios.get(`https://api.is-into.tech/check?domain=${subdomain}.${domain}`);
    checkRes = result;
} catch(err) {
    checkRes = err.response;  // May be undefined on network errors
}

if(!checkRes) return console.log("\nAn error occurred, please try again later.");
if(!checkRes.data) return console.log("\nAn error occurred, please try again later.");

Also fixed inconsistent response handling where success path stored result.data but error path stored err.response, causing property access mismatches.

Version & Infrastructure Update

• Bump version: 1.1.8 → 1.1.9
• API domain: api.is-epic.me → api.is-into.tech
  • 7 endpoints updated across check, register, remove, update, and domains functions

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