Load correct initial page in HTML report

[ndench]

This PR fixes an issue with the following flow:

1. Run phpqa
2. Open the html report for a given tool (ie. psalm, phpstan, etc)
3. Fix issues listed in the report and rerun phpqa
4. Refresh the page to see the updated report

Expected outcome:
The report for the tool is reloaded.

Actual outcome:
Taken back to the phpqa homepage and need to click into the original tool again.

This fix also allows you to go directly to a given tool. For example:

1. Run phpqa
2. Notice that only a single tool is failing (eg. psalm)
3. Go directly to the report for that tool with it's hash (eg. phpqa.html#psalm)

PS. Sorry for all the whitespace changes, my editor automatically strips trailing whitespace on save.

[zdenekdrahos]

It's great. I'll merge it when there are no .gitignore changes (add .idea to global .gitignore, not to every repository). Thanks

[ndench]

No worries @zdenekdrahos, I didn't realise you could have a global .gitignore. I've removed .idea/ but can't seem to remove the extra newline from the end of the file. All my editors appear to add it.

[zdenekdrahos]

Thanks, @ndench.