Form and panel structure:
------------------------------------------------------------
Line 24: FORM OPEN
Line 25: @csrf
Line 28: PANEL OPEN: general
Line 32: app_name field
Line 43: PANEL OPEN: tax-alerts
Line 56: PANEL OPEN: receipt
Line 66: PANEL OPEN: invoice
Line 84: PANEL OPEN: auto-notifications
Line 108: PANEL OPEN: company
Line 143: PANEL OPEN: email
Line 170: PANEL OPEN: appearance
Line 202: ui_theme field
Line 216: PANEL OPEN: sms-gateway
Line 277: PANEL OPEN: payment-methods
Line 325: SUBMIT BUTTON
Line 327: FORM CLOSE
Line 338: FORM OPEN
Line 338: @csrf
Line 347: SUBMIT BUTTON
Line 349: FORM CLOSE
Line 360: FORM OPEN
Line 360: @csrf
Line 368: SUBMIT BUTTON
Line 370: FORM CLOSE
Line 381: FORM OPEN
Line 381: @csrf
Line 391: SUBMIT BUTTON
Line 393: FORM CLOSE
Line 404: FORM OPEN
Line 404: @csrf
Line 413: SUBMIT BUTTON
Line 415: FORM CLOSE
Line 553: ui_theme field
Line 565: ui_theme field