UI Refresh with updated dependencies

[tecoholic]

Duplication of #125 after the diff got messed up for some reason.

This is based on #122 adding a bit more clean up and polish to the UI.

Before

After

[tecoholic]

@alvi-khan Hi, when you get some free time, can you kindly review this one?

P.S: Desktop artifacts can be downloaded from the "Checks" > "Summary"

[tecoholic]

@alvi-khan Thank you for a detailed review. I fixed a number of issues you pointed out and also made a few adjustments to the start page, including disabling the menu items on start page - only "Open File" is allowed.

• Yes. The screenshot link is broken in the README. I think we need to update the screenshots for HelpDialog as well. So, I am planning on doing that once we have the functional changes reviewed and finalized.
• Windows builds - Yeah. That's annoying. I don't have a Windows machine for doing Windows build. Do you happen to have one? And would you be able to test it out? Otherwise, I can remove the pre-release tag from the version and let GitHub handle it.
• I am also thinking of adding a MacOS build for the 2.0 release. What do think about it? There is no work from our side to do it, Tauri's build should handle that in the CI.

[tecoholic]

@alvi-khan I generally agree with your comments on colors. Would you be kind enough to update the PR with the colors you think would be appropriate? I am generally color challenged and that's the reason, I tend to stick to defaults for most things. I tried to communicate certain things with color, but seems to have failed terribly 🫨

I have access to Macs both Intel and ARM ones. So, I can test the builds. No worries.

[tecoholic]

@alvi-khan Thanks for your kind words and taking the time to make the fixes. You have been a great support in maintaining this project.

Version 2.0.0 released :)