Add From<String> impl for Title

[fsktom]

A small quality of life improvement

So that instead of doing

let layout = Layout::new().title(format!("<b>{title}</b>").as_str().into());

I can now do

let layout = Layout::new().title(format!("<b>{title}</b>").into());

[fsktom]

This is even better! Thanks @mfreeborn :)

 let layout = Layout::new().title(format!("<b>{title}</b>"));

is even cleaner now :D

[fsktom]

I'm going to go ahead and try to fix the failing examples etc. if that's alright with you

[mfreeborn]

Yes, start going for it by all means! I ran out of time updating the remaining examples etc last night. I also intend to give `LegendGroupTitle` the same treatment, which we might as well do in this PR.

…

________________________________ From: Filip T ***@***.***> Sent: Tuesday, August 8, 2023 5:48:05 PM To: igiagkiozis/plotly ***@***.***> Cc: Michael Freeborn ***@***.***>; Mention ***@***.***> Subject: Re: [igiagkiozis/plotly] Add From<String> impl for Title (PR #154) I'm going to go ahead and try to fix the failing examples etc. if that's alright with you — Reply to this email directly, view it on GitHub<#154 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AHSVKWHCCN2XMTBK3FYCUPDXUJUULANCNFSM6AAAAAA22XQOCE>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[fsktom]

@mfreeborn I tried improving LegendGroupTitle similarly to Title in 3feaa0c
Seemed to work fine, but I'm not sure if I did everything correctly

What do you think?