feat: Improve Button Interactions, Accessibility & Responsive Styling

Issue Title

UI Enhancement: Improve Button Interactions, Accessibility & Responsive Styling

Issue Template

Description

Improve the overall button experience across the transcription dashboard by refining styling, responsiveness, accessibility, and interaction behavior. The goal is to create a cleaner and more consistent UI while maintaining existing functionality.

Tasks

Update button spacing and alignment
Improve hover and active states
Refine glassmorphism styling consistency
Enhance responsive behavior on smaller screens
Improve accessibility labels and focus visibility
Standardize button sizes and typography
Optimize disabled/loading button states

Affected Components

Recording controls
Action buttons (Save, Copy, Clear, Summarize)
Toggle switches
Overlay panel buttons
Corpus/Library interaction buttons

Expected Outcome

Consistent modern button design
Improved UX and accessibility
Better responsiveness across devices
Cleaner visual hierarchy