Feat(UI): Replace prompt window resize handle with bottom edge drag handle.#8975

DustyShoe wants to merge 2 commits intoinvoke-ai:maininvoke-ai/InvokeAI:mainfrom

DustyShoe:Feat(UI)/Replace-prompt-window-resize-handle-with-bottom-edge-drag-handle-DustyShoe/InvokeAI:Feat(UI)/Replace-prompt-window-resize-handle-with-bottom-edge-drag-handle-Copy head branch name to clipboard