RoosterJS to v8.48.0 and Content-Model package to 0.7.0

Improvement

• Support context menu in ImageSelection Plugin (#1831)
• Make overflowButtonProps (of Ribbon props) propagate (#1807)
• Fix dialog can't be closed through pressing esc key (#1811)

Bug fix

• Fix image resize handle icon when image is rotated (#1801)
• Fix inline image disappearing issue when edit an image pasted from Word Online (#1806, #1829)
• Fix Incorrect Content removal inside of delimiter (#1817)
• Ignore dummy list in a list when calculate list number (#1821)

Content Model

• Fix delete issues (#1799, #1834)
• Fix table cell shading when split a table cell (#1808)
• Copy/Paste using Content Model (#1798, #1810, #1825, #1835, #1836)
• Merge format when merge model (#1813)
• Move default format back to DIV (#1819)
• Support Ctrl+Delete/Backspace (#1822, #1823, #1824, #1826, #1827)

Engineering improvement

• Strict mode for Picker Plugin (#1830, #1832)