Shorter keybinding config: ◆x instead of secondary-x

[eugenesvk]

Especially for x-platform keybinds that use ctrl/cmd modifier named secondary- the keybinding section is poorly readable

{
"shift-alt-enter"    	: "menu::Restart"              	                      	,
"alt-enter"          	:["picker::ConfirmInput"       	,{"secondary":false }]	,
"secondary-alt-enter"	:["picker::ConfirmInput"       	,{"secondary":true  }]	,
"secondary-shift-w"  	: "workspace::CloseWindow"     	                      	,
"shift-escape"       	: "workspace::ToggleZoom"      	                      	,
"secondary-o"        	: "workspace::Open"            	                      	,
"secondary-="        	:["zed::IncreaseBufferFontSize"	,{"persist": false }] 	,
"secondary-shift-="  	:["zed::IncreaseBufferFontSize"	,{"persist": false }] 	,
"secondary--"        	:["zed::DecreaseBufferFontSize"	,{"persist": false }] 	,
"secondary-0"        	:["zed::ResetBufferFontSize"   	,{"persist": false }] 	,
}

Instead at least the modifiers should allow input as 1-symbol letters for something like this, also without the noise of - separator and allowing whitespace for tabular alignment so that it's immediately visible which modifiers are enabled, and also for which final key

"⇧ ⎇⏎"	: "menu::Restart"              	                      	,
"  ⎇⏎"	:["picker::ConfirmInput"       	,{"secondary":false }]	,
" ◆⎇⏎"	:["picker::ConfirmInput"       	,{"secondary":true  }]	,
"⇧◆ w"	: "workspace::CloseWindow"     	                      	,
"⇧  ⎋"	: "workspace::ToggleZoom"      	                      	,
" ◆ o"	: "workspace::Open"            	                      	,
" ◆ ="	:["zed::IncreaseBufferFontSize"	,{"persist": false }] 	,
"⇧◆ ="	:["zed::IncreaseBufferFontSize"	,{"persist": false }] 	,
" ◆ -"	:["zed::DecreaseBufferFontSize"	,{"persist": false }] 	,
" ◆ 0"	:["zed::ResetBufferFontSize"   	,{"persist": false }] 	,

The spacing breaks key sequencing, so unless moving to a different language-supported format of using an actual sequence of strings for a sequence of keys instead of a single string, you could use

• the appropriate + for this "⇧ + ⇧" (likely confusing since it's commonly used for gluing a single shortcut, also conflicts with ⇧= that results in +
• → or ascii -> (now that - can only be a key, -> keybind is invalid on its own? so shouldn't conflict)

Having an option to view these symbols in the GUI (where modifiers should also align vertically for easier differentiation) would be a plus and increase readability of that huge table

Symbol suggestions (can allow all from the list for flexibility):

• ⇧shift
• ƒ fn (or ⓕ Ⓕ 🄵 🅕 🅵)
• ⎇⌥ alt ¦ opt
• ⎈ ctrl
• ❖⌘⊞ cmd ¦ win ¦ super
• ◆ secondary (repurposed from Meta) or maybe ✦✧ from Hyper

and non-modifiers for good measure: Caps⇪ Backspace⌫ Tab⭾ Enter↩