Set reasonable character limits for contributions

[dotmacro]

Problem

The text boxes on the contribution screen seem to accept an unlimited number of characters. (For reference, I gave up after 30k chars.) Among other issues, this can make the contributions screen unnecessarily long, and make it difficult for users to see any contributions that are listed between/under lengthy contribution descriptions. This will affect all members, as the lengthy descriptions will show up under either "Receiving" or "Giving".

Solution

• Limit the input to a reasonable number of characters.
• Indicate the user has reached the char limit the same way we do with usernames and group descriptions: an error with the text "Contribution descriptions cannot exceed N characters."
• Enhancement: Allow a portion of long descriptions to be hidden under a "more..." toggle.

[Silver-IT]

@taoeffect, what do you think is the best reasonable number of characters for this non-monetary contribution?

[taoeffect]

150 characters is fine.

[Silver-IT]

If it is 150, do we need more ... toggle?

[taoeffect]

@Silver-IT no, limiting it to 150 is fine, and you can show the x/150 counter above the field here too