[3.2.12] Get rid of asterisk: fonts (and icons) in the project list

[LisaAlmarode]

The asterisk is not a good indicator for on-disk dirty state. A new font style needs to be used instead.

• changes in the repository are indicated by Bold and Italic. Are there any cases that are Bold/normal-angle or normal-weight/Italic? Do we really need two font changes to indicate dirtiness? Could we use italic for dirty on disk (replace asterisk) and have bold indicate changes in image? Italic isn't very noticeable, though.

• Add underline for dirty? I don't like this since I think this state will be common and it's harder to read.

• another color? We could use Blue and then dirty+skew could be purple but this is a little too cute for me.

Alternately, we could replace the invariable three-golden-apples icon with different icons indicating dirtiness or skew.

[ericwinger]

Added tool tip for project list in browser & transcript. Removed icon. Test added. Here's Lisa's slack message with details:

Disk/image consistent
       regular font
Dirty on disk
       italic
Dirty in image
        bold, not italic
Dirty on disk; Dirty in image
        bold and italic
Skew in sha
        red
Skew in sha; Dirty on disk
         red and italic
Skew in sha; Dirty in image
         red and bold (not italic)
Skew in sha; Dirty on disk; Dirty in image
         red, bold, and italic
Does not exist on disk
         parens
Does not exist on disk; Dirty in image
         parens and bold (not italic)
[12:16](https://gemtalksystems.slack.com/archives/C03SKU8HL5V/p1668543360305189)
In case that wasn't clear, the first line is the actual hover help, and I've got the decorations following.

[LisaAlmarode]

The help text needs to be updated. Reopen, leave on my list until I have text to send to Eric.

[LisaAlmarode]

Reclose this in favor of #993; don't want to keep it hostage for help when the help update cycles is so different.