Added 5 New Icons and Updated Firebase Icon

[islandboymv]

This pull request introduces icons for five JetBrains IDEs - Aqua, Datagrip, Fleet, Resharper, and RustRover - to the collection. These icons capture the essence of each IDE, enhancing the visual representation within the repository. 🎨

Additionally, the Firebase icon has been updated to align with the latest branding guidelines and ensure consistency with the newly added JetBrains IDE icons. 🔥

By incorporating these additions and improvements, the repository becomes more comprehensive, offering a wider range of icons for various JetBrains IDEs. The updated Firebase icon further enhances the overall quality and coherence of the collection. 🚀

closes #26

[LelouchFR]

As I said to you on the figma yesterday, I'm working on doing the firebase Icon, so please remove it, also one thing, if there are icons on the figma, please ask me before if you want to work on it, and not just take it away like that. If you want to work on an icon assign it to yourself, the firebase icon has been asigned to me, so respect that type of way to work thank you.

[islandboymv]

As I said to you on the figma yesterday, I'm working on doing the firebase Icon, so please remove it, also one thing, if there are icons on the figma, please ask me before if you want to work on it, and not just take it away like that. If you want to work on an icon assign it to yourself, the firebase icon has been asigned to me, so respect that type of way to work thank you.

Cool. Will keep it in mind. but as for now would request to merge the pull request.