Rich text toolbar bold/italic behaves differently to keyboard shortcut

[johngodley]

The behaviour of the rich text formatting tools is different depending if you use the toolbar or keyboard shortcuts.

If you place the caret on a word in a paragraph and press the bold button it does nothing. If you press cmd+b it highlights the word and makes it bold. The same occurs for italic.

To Reproduce
Steps to reproduce the behavior:

1. Create a paragraph block
2. Enter some words
3. Place the caret in a word
4. Click the bold button in the rich text toolbar, note how nothing changes
5. Press cmd+b and note how the word is highlight and becomes bold

Maybe related to #11062.

Expected behavior
I like how cmd+b highlights the word and would expect the toolbar button to do the same.

Additionally, placing the caret at the end of a word and before a space and then pressing cmd+b should highlight the previous word. Currently it highlights the space.

Desktop (please complete the following information):

• OS: MacOS
• Browser: Chrome
• Version [e.g. 22]

[ellatrix]

This was normalised in #10209. Whether the current behaviour for an uncollapsed selection inside a word is right, I don't know, but it can be discussed in a separate issue. Looking at the old editor, it would make the word bold if the caret is inside the word, and insert a placeholder if the caret is at the edges of the word.