refactor: 💡 Authentication initialization error revision (#68)

## Why?

Authentication initialization error revision.

## How?

- Created new error messages for auth failures
- Exit none-zero on authentication init failure

## Tickets?

-
[PLAT-1743](https://linear.app/fleekxyz/issue/PLAT-1743/authentication-initialization-error-should-throw-none-zero)

## Contribution checklist?

- [x] The commit messages are detailed
- [x] The `build` command runs locally
- [ ] Assets or static content are linked and stored in the project
- [ ] You have manually tested
- [ ] You have provided tests

## Security checklist?

- [ ] Sensitive data has been identified and is being protected properly
- [ ] Injection has been prevented (parameterized queries, no eval or
system calls)

## Preview?

Optionally, provide the preview url here

.changeset/tasty-spoons-kick.md

@@ -0,0 +1,5 @@
+---
+"@fleek-platform/cli": patch
+---
+
+Enhance authentication failure on comman execution and initialization

locales/en.json

@@ -359,5 +359,7 @@
   "uploadAssetsFailed": "Failed to upload function assets to Fleek. Check your network connection and try again.",
   "assetsNotSupportedInSgx": "Function assets are not supported in SGX environment",
   "functionsSite": "The Site ID where the Function will be deployed",
-  "siteNotFound": "Site not found!"
+  "siteNotFound": "Site not found!",
+  "failedAuthentication": "This command failed to authenticate. Have you run 'fleek login' to sign in? If the issue persists contact our support team at https://fleek.xyz/support",
+  "missingPersonalAccessToken": "Missing a valid personal access token. Visit https://fleek.xyz/docs for detailed instructions and try again, please!"
 }