Issues/feedback related to v0.3

Issues and feedback related v0.3
```[tasklist]
### Tasks
- [x] Readability of "Help" section needs to be improved
- [x] Behaviour of the "Instructions" section is inapproriate - it simply toggles between appearing and disappearing when "instructions" is clicked. And also it replaces the output section which loses results of the last run.
- [ ] Implement links for each example, in a way they can be shared individually
- [x] Advice provider example runs into failures
- [x] Std library example runs into failures
- [x] Behaviour of "proving" toast component when tried to prove on a failing code needs to be fixed
- [ ] The button to download the ".masm" files is counterintuitive - it is hardly recognizable as a download button
- [ ] According to its behaviour the collapse button in the input panel is supposed to change from "+" to "-" rather than changing its colour from green to grey.
- [ ] https://github.com/0xPolygonMiden/examples/issues/174
- [ ] The debug view has few areas where it can be fixed/improved: the relevance of green numbers at the initial stage is very less, the "|<" and "<<" buttons does not appear to work when pressed first - shall be disabled in that case,
- [ ] It's hard to understand what is the VM's stack when going backwards; esp. if the state is changed to use a table.
- [x] Using the buttons ">>" and ">|" seem to print only the last state of the VM. That is not super useful for debugging one wants to see all intermediary values.
- [x] Verification of the matrix multiplication doesn't work
- [x] There is no output shown when "Prove" button is clicked
```