fix: remove trailing space in formatting toolbar tooltips

[yash113gadia]

Fix trailing space in formatting toolbar tooltips

Acceptance Criteria fulfillment

• Tooltips for formatters with a shortcut still render as name (shortcut)
• Tooltips for formatters without a shortcut (strike, code, multiline) render as just name — no trailing space
• Fix applied to both the main toolbar and the small-screen toolbar

Fixes #1280

Description

The Tooltip text template literal in ChatInputFormattingToolbar.js unconditionally inserted a space between the formatter name and the optional shortcut:

text={`${item.name} ${item.shortcut && `(${item.shortcut})`}`}

When item.shortcut is an empty string (formatters like strike, code, multiline), item.shortcut && ... evaluates to '', but the leading space in the template was still included — so the tooltip rendered as "strike ", "code ", "multiline " with a trailing space.

The space is now part of the conditional, so it only appears when there is an actual shortcut:

text={`${item.name}${item.shortcut ? ` (${item.shortcut})` : ''}`}

The same pattern existed in the small-screen toolbar block, so it was fixed there too.

PR Test Details

1. Open the chat input formatting toolbar.
2. Hover the strike, code, and multiline buttons → tooltip shows the bare name, no trailing space.
3. Hover bold / italic (which have shortcuts) → tooltip still shows name (shortcut).

Lint passes on the changed file (eslint clean; pre-existing unrelated warnings untouched).

[CLAassistant]

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