Small bugfixes

What's Changed

• Bump javafx.version from 18 to 18.0.1 by @dependabot in #40
• Bump log4j-core from 2.17.2 to 2.18.0 by @dependabot in #42
• Bump log4j-api from 2.17.2 to 2.18.0 by @dependabot in #41
• fix: Make the asset URL HTTPS by @Shirosaka in #51
• Fixed servers.dat not being created when absent

Full Changelog: 1.0.292...1.0.300

1.0.250

Merge pull request #33 from German-Immersive-Railroading-Community/al…

…ternateJavaPathFix

Fix for invalid alternative java path selection

1.0.245

Merge pull request #32 from German-Immersive-Railroading-Community/be…

…ta_branch_npe_fix

Fix NullPointerException in setActiveBeta()

1.0.242

Merge pull request #31 from German-Immersive-Railroading-Community/fi…

…xOutOfBounds

Updatet log4j, removed unused library, fixed bug in start

1.0.239

Merge pull request #30 from Shirosaka/updateDefaultRamSetting

Update default ram to 4 GB.

1.0.237

Merge pull request #29 from HyCraftHD/CVE-2021-44228

[CVE-2021-44228] Update logj42 to 2.15.0

1.0.235

Merge pull request #28 from German-Immersive-Railroading-Community/fi…

…xOptionalMods

Change regex to only search for `.jar` at the end of the file name

1.0.231

Merge pull request #27 from German-Immersive-Railroading-Community/sm…

…allFix

## Fixes:
- Verify that mods are not present before copying.
- Slightly changed try-catch logic of `StartupUtil.getBetaVersions()`.

1.0.227

Merge pull request #26 from German-Immersive-Railroading-Community/be…

…taSelection

feature: Beta selection.

- Ability to start the Launcher with the `-eb` and `--enable-beta` startup parameters, which enable the beta area in the `OptionsScene`.
- Ability to select all currently open pull requests that are returned by the `beta.json` and select one to test.
- Ability to dynamically change the `servers.dat` file to include the test server to the corresponding pull request.
- Ability to start the game with the mod that should be tested instead of the original.

1.0.219

Merge pull request #25 from German-Immersive-Railroading-Community/im…

…gbot

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