Migrate conf to toml internally. Prepare addon configuration storing and loading. Deprecate ConfigUtilities#writeConfigToFile, use ConfigurationModel#save(File destination) instead.

improv(Configuration): Allow storing and loading of addon configurations and custom script settings

See merge request !300

# Conflicts:
#	backend/main/java/de/griefed/serverpackcreator/ConfigurationHandler.java
#	backend/test/java/de/griefed/serverpackcreator/ApplicationPluginsTest.java
#	backend/test/resources/serverpackcreator.properties
#	backend/test/resources/testresources/properties/filters/contains.properties
#	backend/test/resources/testresources/properties/filters/either.properties
#	backend/test/resources/testresources/properties/filters/end.properties
#	backend/test/resources/testresources/properties/filters/regex.properties
#	backend/test/resources/testresources/properties/filters/start.properties

Completely overhault and exapnd the addon system. Adds config check and config panel extension endpoints. Provide abstracts for ConfigPanel, Addon and ExtensionTab. Create, load and provide global addon configuration and extension specific configurations

improv(Addon System Overhaul): Exapnd addon system. Adds ConfigCheck & ConfigPanel extensions. Provide abstracts for ConfigPanel, Addon and ExtensionTab. Create, load and provide global addon- and extension-specific configuration.

feat(Start Script Settings Editing): Provide table to add, edit, remove placeholders and values for custom start scripts

See merge request !310

deps(deps): update dependency ghcr.io/griefed/gitlab-ci-cd to v2.2.1

See merge request !308

chore(deps): update dependency eslint to v8.23.0

See merge request !307

deps(deps): update dependency org.xerial:sqlite-jdbc to v3.39.2.1

See merge request !306

deps(deps): update dependency gradle to v7.5.1

See merge request !305

deps(deps): update dependency ghcr.io/griefed/baseimage-ubuntu-jdk-8 to v2.0.13

See merge request !304

chore(deps): update dependency vue to v3.2.38

See merge request !303

chore(deps): update dependency @quasar/extras to v1.15.2

See merge request !302

improv(Java Setting For Modloader Server Installation): Move Java setting to global setting in ApplicationProperties. Small GUI makeover, too.

improv(Java Setting For Modloader Server Installation): Move Java setting to global setting in ApplicationProperties. Small GUI makeover, too.

See merge request !311

improv(Start Script Settings): Allow setting custom Java path in start scripts. Java in scripts for ZIP-archives will continue to be set to `java` only.

improv(Start Script Settings): Allow setting custom Java path in start scripts. Java in scripts for ZIP-archives will continue to be set to `java` only.

See merge request !312

fix: Java arguments and script settings not being cleared when hitting "New Configuration". Directories which must be included not migrated to TreeSet, so it accumulated over time.

improv(Extension Configuration Provision): Identify configuration to provide by addonID and extension ID to ensure we do not pass foreign configurations by accident.

fix(ConfigPanelExtension): Make serverpackExtensionConfig abstract and leave implementation to developers. We can not anticipate what a given panel holds.

fix(ConfigPanelExtension): Make setServerPackExtensionConfig abstract and leave implementation to developers. We can not anticipate what a given panel holds.

fix(Addon Suite): Do not base BaseInformation off of ExtensionPoint

See merge request !313

improv(Addon Suite): Provide more data to extensions. Ensure global addon configurations are properly managed by SPC.

ci: Ensure long changelogs do not crash release pipeline. Use softprops/action-gh-release for release with assets upload included. Trim Discord webhook message.

improv(GUI): DIsplay required Java version correlating to selected Minecraft version. Add getters and setters to allow read & write from addons. Warn if selected Minecraft version has no server available.

fix(VersionMeta): Provide default manifests. Prevents SPC from not starting up properly just because the servers of a modloader aren't accessible.

feat(Scan selected modpack directory & Java 8/17 paths in script variables): After selecting the modpack-directory, Minecraft version, modloader and modloader version are automatically set, if possible. Display required Java version. Allow defining Java 8 and 17 paths for local testing and automatically update SPC_JAVA_SPC.

improv(Java Script Variable Update): Allow disabling of automatic update of SPC_JAVA_SPC-placeholder in script variables

GUI upgrades lets gooooooooooooooo

See merge request !316

improv(GUI): Server icon preview.Buttons to reset, revert clientside mods, copy directories and inspect modpackdirectory

improv(GUI): Server icon preview.Buttons to reset, revert clientside mods, copy directories and inspect modpackdirectory

See merge request !317

chore(Fallback clientside-only mods lists): Update with mods from @BisectStudios, kindly provided by @AzureDoom

refactor(GUI): Extend ServerPackCreatorGui from JFrame instead of creating and managing a JFrame inside our class. Move choolseJava() to frame and access from other places.

# Conflicts:
#   build.gradle

fix(Jar): Correctly set Start-Class attribute in bootJar manifest so the fatjar can be run normally.

refactor(ApplicationProperties): Move load from constructor to loadProperties to ensure we always have the classpath-configurations available. When using alpha or beta releases, always check for newer version to prevent people getting stuck on old pre-releases.

Overhaul addon suite. Fix and improve a couple of other things

See merge request !315