T3363

The alias input status check should leverage the existing isValidAliasString function's regex to weed out all instances of non-alphanumeric inputs (e.g. capital letters, spaces, symbols, non-english characters).

The else block here is also removed to prevent the scenario where an available alias overrides the invalid alias input error.

npm test
npm start
Ensure the following alias input permutations match the expected outcome:

• Valid input + unregistered alias = byte size and price message displayed
• Valid input + registered alias = Alias taken error displayed
• Invalid input (capital letter) + unregistered alias = invalid input error
• Invalid input (space) + unregistered alias = invalid input error
• Invalid input (% symbol) + unregistered alias = invalid input error
• Invalid input (字 non-english char) + unregistered alias = invalid input error
• Invalid input (capital letter) + registered alias = invalid input error
• Invalid input (space) + registered alias = invalid input error
• Invalid input (% symbol) + registered alias = invalid input error
• Invalid input (字 non-english char) + registered alias = invalid input error
• Enter an input, then delete the input = invalid input error