sessions: polish run task quick input modal (#304652)

* Enhance quick input modal styling and functionality; add close button and improve padding

* Refactor quick input and run script action styles; adjust padding, height, and add new button styles

* Update quick input and run script action styles; adjust border radius, padding, and gap for improved UI consistency

* Refactor task action labels; remove ellipses for improved clarity

* Refactor quick input and run script action styles; adjust padding and add new titlebar styles for improved UI consistency

* Remove background color styles for quick input widget in run script action for improved UI consistency

* Refactor quick input header and run script action padding for improved layout consistency

* Add background color to quick input header and run script action widget for improved UI consistency

* Refactor run script action styles; adjust padding, gap, and background colors for improved UI consistency

* Update background color for quick input header and run script action widget; refine localization strings for clarity

* Update background color for quick input header and run script action widget for improved visual consistency

* Refactor padding in quick input titlebar for improved layout consistency

* Update background color for quick input header and run script action widget for improved visual consistency

* style: update task labels to include ellipsis for consistency

* style: remove unused styles for quick-input-html-widget

* style: add overflow hidden to quick-input-html-widget for better layout

* style: add disabled state styles for run-script-action radio buttons

* style: update disabled state styles for run-script-action radio buttons and improve hint display

* style: add cursor default and focus outline removal for disabled radio buttons

* style: adjust margins for action bars in quick input widget and enhance custom command input functionality

* style: remove left margin for quick input left action bar in run-script-action widget

* style: adjust padding and margins for quick input titlebar and action items in run-script-action widget

* style: adjust padding for quick input titlebar and remove unnecessary margin styles in run-script-action widget

* sessions: remove ellipsis from Configure Task modal title

Co-authored-by: Copilot <[email protected]>

* sessions: keep run-task menu open for item actions

Co-authored-by: Copilot <[email protected]>

* feat: add refresh functionality for dropdown menu in RunScriptActionViewItem

* Revert "feat: add refresh functionality for dropdown menu in RunScriptActionViewItem"

This reverts commit a7b7a0d935570abe88b1e7d9d328cbfe4f6f7c0e.

* Revert "sessions: keep run-task menu open for item actions"

This reverts commit 0b2e44b7457353a4343a200a3d6074eb93cd1494.

* quickinput: revert no-op header padding shorthand

Co-authored-by: Copilot <[email protected]>

* feat: add backdrop for run script action modal

* feat: streamline backdrop creation for run script action modal

* fix: increase padding in run script action widget for better spacing

* style: update run script action styles and class names for consistency

* fix: update tabIndex handling for storage options in RunScriptCustomTaskWidget

* fix: simplify storage options handling by enabling/disabling based on target lock state

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Co-authored-by: Copilot <[email protected]>