[Fix] Prevent empty name category from being added

[DenysMb]

Currently we can add empty categories and also rename categories for an empty string.
This is just a small fix to prevent those cases.
I also did another one change to disable the "confirm rename button" when the name was not changed.

Before:

Before.mp4

After:

After.mp4

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Use the following Checklist if you have changed something on the Backend or Frontend:

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)

[arielj]

Sorry, one more thing, it would be good to update the e2e/categories.spec.ts to test these changes

it should be easy to update the test to check that the button is disabled with blank and unchanged values

[DenysMb]

Sorry, one more thing, it would be good to update the e2e/categories.spec.ts to test these changes

it should be easy to update the test to check that the button is disabled with blank and unchanged values

No worries. Everything is valid to increase the code quality.
I update the test, but I couldn't test. I receive the following error: Error: electron.launch: Process failed to launch!.
Probably something related to openSUSE Tumbleweed + Nvidia, I think... Because when I need to run the start script, I need to add app.commandLine?.appendSwitch('disable-gpu-sandbox') to main.ts to be able to run the application.
I'm trying to solve this, so I can check if is everything okay with the added scenarios.

Detailed error

This error happen for this four tests: renders the first page, gets heroic, legendary, and gog versions, categories and webview.

X) helpers.ts:19:7 > (one of these four tests - it happens with all of them, so is the same error repeated 4 times)

Error: electron.launch: Process failed to launch!

      18 | ) {
      19 |   test(name, async () => {
    > 20 |     const app = await electron.launch({
         |                 ^
      21 |       args: [main_js]
      22 |     })
      23 |     await func(app)

        at /storage/Projects/Contributions/HeroicGamesLauncher/e2e/helpers.ts:20:17

[arielj]

Here you are testing that the button is disabled when the name is unchanged, the comment doesn't match that

the other 2 expects are for the blank tests

I can merge this after that's fixed

[DenysMb]

Sorry for the delay in fixing this.
These previous days were very busy.
I fixed this now. Where it says "empty" should be "same", I didn't realize that "words swap".

[arielj]

thanks! merging