Add Setting: Automatic space insertion after word suggestion selection

[uestueab]

When you select a word of the suggestion list there will always be inserted a space character after it when you continue to write, what can be annoying if you want to edit or add something to the suggested word. There should be a setting for en- /disabling this behavior.

Someone has achieved this very easily changing only what it seems to be a constant. Here is the link: https://github.com/openboard-team/openboard/issues/14#issuecomment-986072085

[recon148]

For me, it inserts the space before the relevant word. This only occurs for when the original word is not misspelled, and the cursor is not at the end of the word.

It is important to note that it inserts this extra space even if there's already a single space there.